diff --git a/.circleci/config.yml b/.circleci/config.yml
index 04b98d5..c20ce16 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -14,13 +14,9 @@ workflows:
               only: /v?[0-9]+(\.[0-9]+)*/
           matrix:
             parameters:
-              python_version: ["3.5", "3.8"]
-              debian_version: ["stretch", "buster"]
-            exclude:
-              - python_version: "3.8"
-                debian_version: "stretch"
-              - python_version: "3.5"
-                debian_version: "buster"
+              python_version: ["3.8"]
+              debian_version: ["buster"]
+
       - pypi:
           requires:
             - test
@@ -39,7 +35,6 @@ jobs:
         type: string
       debian_version:
         type: string
-        default: stretch
     docker:
       # specify the version you desire here
       # use `-browsers` prefix for selenium tests, e.g. `3.6.1-browsers`
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 14f0985..dda5427 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -12,6 +12,8 @@ Change Log
 Unreleased
 ----------
 * **BREAKING CHANGE**: add support for lilac and therefore changed backends defaults.
+* **BREAKING CHANGE**: add support for openedx-events. Only works for Lilac with PRs backport 28266 and 18640
+  and >= Maple.
 
 [1.0.0] - 2021-08-17
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/eox_hooks/actions.py b/eox_hooks/actions.py
index ca1b0fd..85d1833 100644
--- a/eox_hooks/actions.py
+++ b/eox_hooks/actions.py
@@ -8,13 +8,15 @@
 from opaque_keys.edx.keys import CourseKey
 
 from eox_hooks.edxapp_wrapper.courses import get_item_not_found_exception, get_load_single_xblock
+from eox_hooks.edxapp_wrapper.models import get_certificate_model
 from eox_hooks.serializers import CertificateSerializer, CourseSerializer, UserSerializer
 from eox_hooks.tasks import create_enrollments_for_program
 from eox_hooks.utils import _get_course, flatten_dict, get_trigger_settings
 
+COURSE_PASSING_GRADE = 1
 ItemNotFoundError = get_item_not_found_exception()
 load_single_xblock = get_load_single_xblock()
-COURSE_PASSING_GRADE = 1
+GeneratedCertificate = get_certificate_model()
 log = logging.getLogger(__name__)
 
 
@@ -61,6 +63,9 @@ def post_to_webhook_url(**kwargs):
 
     if trigger_settings.get("send_certificate_data", False):
         certificate = kwargs.get("certificate", {})
+        certificate = GeneratedCertificate.objects.get(
+            user__id=certificate.user.id, course_id=certificate.course.course_key,
+        )
         extended_data = get_extended_certificate_data(certificate)
         data.update(extended_data)
 
@@ -144,8 +149,8 @@ def trigger_enrollments_creation(**kwargs):
         course_key (str): course identifier.
         user (User): user that just enrolled in the course.
     """
-    course = _get_course(kwargs.get("course_key"))
-    user = kwargs.get("user")
+    enrollment = kwargs.get("enrollment")
+    course = _get_course(enrollment.course.course_key)
 
     followup_enrollments = getattr(course, "other_course_settings", {}).get(
         "EDNX_TRIGGER_FOLLOWUP_ENROLLMENTS"
@@ -154,7 +159,9 @@ def trigger_enrollments_creation(**kwargs):
     if not followup_enrollments:
         return
 
-    create_enrollments_for_program.delay(user.username, followup_enrollments)
+    create_enrollments_for_program.delay(
+        enrollment.user.pii.username, followup_enrollments,
+    )
 
 
 def trigger_grades_assignment(**kwargs):
@@ -189,10 +196,10 @@ def trigger_grades_assignment(**kwargs):
         User `U` obtains 90% of the grade in X, then 1 is assigned to the component x.
 
     Keyword args:
-        certificate (GeneratedCertificate): certificate generated by the course.
+        certificate (CertificateData): certificate data generated by the course.
     """
     certificate = kwargs.get("certificate")
-    course = _get_course(certificate.course_id)
+    course = _get_course(certificate.course.course_key)
 
     grades_assignment_settings = getattr(course, "other_course_settings", {}).get(
         "EDNX_TRIGGER_GRADES_ASSIGNMENT", {}
diff --git a/eox_hooks/apps.py b/eox_hooks/apps.py
index c63adb4..73b8a38 100644
--- a/eox_hooks/apps.py
+++ b/eox_hooks/apps.py
@@ -67,23 +67,48 @@ class EoxHooksConfig(AppConfig):
                 'receivers': [
                     {
                         'receiver_func_name': 'hooks_handler',
-                        'signal_path': get_signal_module('pre_enrollment'),
-                        'dispatch_uid': 'eox-hooks:pre_enrollment',
+                        'signal_path': 'openedx_events.learning.signals.STUDENT_REGISTRATION_COMPLETED',
+                        'dispatch_uid': 'eox-hooks:post_register',
+                    },
+                    {
+                        'receiver_func_name': 'hooks_handler',
+                        'signal_path': 'openedx_events.learning.signals.SESSION_LOGIN_COMPLETED',
+                        'dispatch_uid': 'eox-hooks:post_session_login',
+                    },
+                    {
+                        'receiver_func_name': 'hooks_handler',
+                        'signal_path': 'openedx_events.learning.signals.COURSE_ENROLLMENT_CREATED',
+                        'dispatch_uid': 'eox-hooks:post_enrollment',
                     },
                     {
                         'receiver_func_name': 'hooks_handler',
-                        'signal_path': get_signal_module('post_certificate_creation'),
+                        'signal_path': 'openedx_events.learning.signals.COURSE_ENROLLMENT_CHANGED',
+                        'dispatch_uid': 'eox-hooks:post_enrollment_change',
+                    },
+                    {
+                        'receiver_func_name': 'hooks_handler',
+                        'signal_path': 'openedx_events.learning.signals.COURSE_UNENROLLMENT_COMPLETED',
+                        'dispatch_uid': 'eox-hooks:post_unenrollment',
+                    },
+                    {
+                        'receiver_func_name': 'hooks_handler',
+                        'signal_path': 'openedx_events.learning.signals.CERTIFICATE_CREATED',
                         'dispatch_uid': 'eox-hooks:post_certificate_creation',
                     },
                     {
                         'receiver_func_name': 'hooks_handler',
-                        'signal_path': get_signal_module('post_register'),
-                        'dispatch_uid': 'eox-hooks:post_register',
+                        'signal_path': 'openedx_events.learning.signals.CERTIFICATE_CHANGED',
+                        'dispatch_uid': 'eox-hooks:post_certificate_change',
                     },
                     {
                         'receiver_func_name': 'hooks_handler',
-                        'signal_path': get_signal_module('post_enrollment'),
-                        'dispatch_uid': 'eox-hooks:post_enrollment',
+                        'signal_path': 'openedx_events.learning.signals.CERTIFICATE_REVOKED',
+                        'dispatch_uid': 'eox-hooks:post_certificate_revoke',
+                    },
+                    {
+                        'receiver_func_name': 'hooks_handler',
+                        'signal_path': 'openedx_events.learning.signals.COHORT_MEMBERSHIP_CHANGED',
+                        'dispatch_uid': 'eox-hooks:post_cohort_change',
                     },
                 ],
             }
diff --git a/eox_hooks/serializers.py b/eox_hooks/serializers.py
index 6a414d1..aa7ad9e 100644
--- a/eox_hooks/serializers.py
+++ b/eox_hooks/serializers.py
@@ -8,7 +8,7 @@
 
 from eox_hooks.edxapp_wrapper.models import get_certificate_model, get_user_profile_model
 
-Certificate = get_certificate_model()
+GeneratedCertificate = get_certificate_model()
 UserProfile = get_user_profile_model()
 
 
@@ -20,7 +20,7 @@ class CertificateSerializer(serializers.ModelSerializer):
 
     class Meta:
         """Meta class."""
-        model = Certificate
+        model = GeneratedCertificate
         fields = '__all__'
 
 
diff --git a/eox_hooks/tests/test_actions.py b/eox_hooks/tests/test_actions.py
index 3114260..ef11aa1 100644
--- a/eox_hooks/tests/test_actions.py
+++ b/eox_hooks/tests/test_actions.py
@@ -4,11 +4,12 @@
     TestPostToWebhookUrl.
     TriggerEnrollmentsTest.
 """
+import datetime
 from unittest.mock import MagicMock, patch
 
-from django.contrib.auth import get_user_model
 from django.test import TestCase
 from opaque_keys.edx.keys import CourseKey
+from openedx_events.learning.data import CertificateData, CourseData, CourseEnrollmentData, UserData, UserPersonalData
 
 from eox_hooks.actions import get_request_fields, trigger_enrollments_creation, trigger_grades_assignment
 
@@ -18,11 +19,14 @@ class TestPostToWebhookUrl(TestCase):
 
     def setUp(self):
         """Set up class for post_to_webhook_url testing."""
-        self.user = get_user_model().objects.create(
-            id='1',
-            first_name='Tania',
-            last_name='Chernova',
-            username='taniacher',
+        self.user = UserData(
+            pii=UserPersonalData(
+                username="taniacher",
+                email="test@example.com",
+                name="Tania Chernova",
+            ),
+            id=1,
+            is_active=True,
         )
         self.kwargs = {
             'user': self.user,
@@ -35,13 +39,11 @@ def test_get_request_fields(self):
         This should return a dictionary with all the fields found.
         """
         fields = {
-            "first_name": "user.first_name",
-            "last_name": "user.last_name",
-            "username": "user.username",
+            "name": "user.pii.name",
+            "username": "user.pii.username",
         }
         expected_data = {
-            "first_name": "Tania",
-            "last_name": "Chernova",
+            "name": "Tania Chernova",
             "username": "taniacher",
         }
 
@@ -60,7 +62,7 @@ def test_get_request_fields_missing_fields(self):
         fields = {
             "favorite_color": "user.favorite_color",
             "favorite_food": "user.favorite_food",
-            "username": "user.username",
+            "username": "user.pii.username",
             "course": "course.id",
         }
         extra_fields = {
@@ -91,9 +93,26 @@ def setUp(self):
         """
         Setup common conditions for test cases.
         """
-        self.user = MagicMock(username="test")
+        enrollment = CourseEnrollmentData(
+            user=UserData(
+                pii=UserPersonalData(
+                    username="test",
+                    email="test@example.com",
+                    name="Test Example",
+                ),
+                id=39,
+                is_active=True,
+            ),
+            course=CourseData(
+                course_key=CourseKey.from_string("course-v1:edX+DemoX+Demo_Course"),
+                display_name="Demonstration Course",
+            ),
+            mode="audit",
+            is_active=True,
+            creation_date=datetime.datetime.now(),
+        )
         self.kwargs = {
-            "user": self.user,
+            "enrollment": enrollment,
         }
 
     @create_enrollments_for_program
@@ -177,8 +196,26 @@ def setUp(self):
         """
         Setup common conditions for test cases.
         """
-        user = MagicMock(id=1, username="test")
-        self.certificate = MagicMock(user=user, grade=0.5)
+        self.certificate = CertificateData(
+            user=UserData(
+                pii=UserPersonalData(
+                    username="test",
+                    email="test@example.com",
+                    name="Test Example",
+                ),
+                id=39,
+                is_active=True,
+            ),
+            course=CourseData(
+                course_key=CourseKey.from_string("course-v1:edX+DemoX+Demo_Course"),
+                display_name="Demonstration Course",
+            ),
+            mode="audit",
+            current_status="notpassing",
+            grade=0.5,
+            download_url="https://downdloadurl.com",
+            name="Certs",
+        )
         self.kwargs = {
             "certificate": self.certificate,
         }
diff --git a/eox_hooks/tests/test_receivers.py b/eox_hooks/tests/test_receivers.py
index 8734e2e..7d899d2 100644
--- a/eox_hooks/tests/test_receivers.py
+++ b/eox_hooks/tests/test_receivers.py
@@ -3,9 +3,33 @@
 Classes:
     TestReceivers.
 """
+import datetime
+
+import attr
 from django.conf import settings
 from django.test import TestCase, override_settings
 from mock import Mock, patch
+from opaque_keys.edx.keys import CourseKey
+from openedx_events.data import EventsMetadata
+from openedx_events.learning.data import (
+    CertificateData,
+    CohortData,
+    CourseData,
+    CourseEnrollmentData,
+    UserData,
+    UserPersonalData,
+)
+from openedx_events.learning.signals import (
+    CERTIFICATE_CHANGED,
+    CERTIFICATE_CREATED,
+    CERTIFICATE_REVOKED,
+    COHORT_MEMBERSHIP_CHANGED,
+    COURSE_ENROLLMENT_CHANGED,
+    COURSE_ENROLLMENT_CREATED,
+    COURSE_UNENROLLMENT_COMPLETED,
+    SESSION_LOGIN_COMPLETED,
+    STUDENT_REGISTRATION_COMPLETED,
+)
 
 from eox_hooks.receivers import hooks_handler
 
@@ -66,3 +90,394 @@ def test_without_hooks_configuration_defined(self):
         This should result in the calling of a default action.
         """
         self.assertIsNone(hooks_handler(self.sender, self.signal))
+
+
+@override_settings(USE_EOX_HOOKS=True)
+class TestAuthEventsHandler(TestCase):
+    """
+    Tests for hooks_handler when receiving Open edX Events related to the auth process.
+    """
+
+    def setUp(self):
+        """
+        Setup common conditions for every test case.
+        """
+        super().setUp()
+        self.user = UserData(
+            pii=UserPersonalData(
+                username="test",
+                email="test@example.com",
+                name="Test Example",
+            ),
+            id=39,
+            is_active=True,
+        )
+
+    @override_settings(EOX_HOOKS_DEFINITIONS={"post_register": {}})
+    @patch("eox_hooks.receivers.action_handler")
+    def test_receiver_called_after_registration(self, action_handler):
+        """
+        Test that hooks_handler is called the correct information after sending
+        STUDENT_REGISTRATION_COMPLETED event.
+        """
+        metadata = EventsMetadata(
+            event_type="org.openedx.learning.student.registration.completed.v1",
+            minorversion=0,
+        )
+        expected_metadata_subset = {
+            "event_type": metadata.event_type,
+            "minorversion": metadata.minorversion,
+            "source": metadata.source,
+            "sourcehost": metadata.sourcehost,
+            "sourcelib": list(metadata.sourcelib),
+        }
+        action_handler.return_value.__name__ = "receiver"
+        action_handler.return_value.__module__ = "receiver_module"
+        STUDENT_REGISTRATION_COMPLETED.connect(hooks_handler, dispatch_uid="eox-hooks:post_register")
+
+        STUDENT_REGISTRATION_COMPLETED.send_event(
+            user=self.user,
+        )
+
+        self.assertDictContainsSubset(
+            expected_metadata_subset, attr.asdict(action_handler.call_args.kwargs.get("metadata")),
+        )
+        self.assertEqual(self.user, action_handler.call_args.kwargs.get("user"))
+
+    @override_settings(EOX_HOOKS_DEFINITIONS={"post_session_login": {}})
+    @patch("eox_hooks.receivers.action_handler")
+    def test_receiver_called_after_login(self, action_handler):
+        """
+        Test that hooks_handler is called the correct information after sending
+        SESSION_LOGIN_COMPLETED event.
+        """
+        metadata = EventsMetadata(
+            event_type="org.openedx.learning.auth.session.login.completed.v1",
+            minorversion=0,
+        )
+        expected_metadata_subset = {
+            "event_type": metadata.event_type,
+            "minorversion": metadata.minorversion,
+            "source": metadata.source,
+            "sourcehost": metadata.sourcehost,
+            "sourcelib": list(metadata.sourcelib),
+        }
+        action_handler.return_value.__name__ = "receiver"
+        action_handler.return_value.__module__ = "receiver_module"
+        SESSION_LOGIN_COMPLETED.connect(hooks_handler, dispatch_uid="eox-hooks:post_session_login")
+
+        SESSION_LOGIN_COMPLETED.send_event(
+            user=self.user,
+        )
+
+        self.assertDictContainsSubset(
+            expected_metadata_subset, attr.asdict(action_handler.call_args.kwargs.get("metadata")),
+        )
+        self.assertEqual(self.user, action_handler.call_args.kwargs.get("user"))
+
+
+class TestEnrollmentEventsHandler(TestCase):
+    """
+    Tests for hooks_handler when receiving Open edX Events related to the enrollment process.
+    """
+
+    def setUp(self):
+        """
+        Setup common conditions for every test case.
+        """
+        super().setUp()
+        self.enrollment = CourseEnrollmentData(
+            user=UserData(
+                pii=UserPersonalData(
+                    username="test",
+                    email="test@example.com",
+                    name="Test Example",
+                ),
+                id=39,
+                is_active=True,
+            ),
+            course=CourseData(
+                course_key=CourseKey.from_string("course-v1:edX+DemoX+Demo_Course"),
+                display_name="Demonstration Course",
+            ),
+            mode="audit",
+            is_active=True,
+            creation_date=datetime.datetime.now(),
+        )
+
+    @override_settings(EOX_HOOKS_DEFINITIONS={"post_enrollment": {}})
+    @patch("eox_hooks.receivers.action_handler")
+    def test_receiver_called_after_enrollment(self, action_handler):
+        """
+        Test that hooks_handler is called the correct information after sending
+        COURSE_ENROLLMENT_CREATED event.
+        """
+        metadata = EventsMetadata(
+            event_type="org.openedx.learning.course.enrollment.created.v1",
+            minorversion=0,
+        )
+        expected_metadata_subset = {
+            "event_type": metadata.event_type,
+            "minorversion": metadata.minorversion,
+            "source": metadata.source,
+            "sourcehost": metadata.sourcehost,
+            "sourcelib": list(metadata.sourcelib),
+        }
+        action_handler.return_value.__name__ = "receiver"
+        action_handler.return_value.__module__ = "receiver_module"
+        COURSE_ENROLLMENT_CREATED.connect(hooks_handler, dispatch_uid="eox-hooks:post_enrollment")
+
+        COURSE_ENROLLMENT_CREATED.send_event(
+            enrollment=self.enrollment,
+        )
+
+        self.assertDictContainsSubset(
+            expected_metadata_subset, attr.asdict(action_handler.call_args.kwargs.get("metadata")),
+        )
+        self.assertEqual(self.enrollment, action_handler.call_args.kwargs.get("enrollment"))
+
+    @override_settings(EOX_HOOKS_DEFINITIONS={"post_enrollment_change": {}})
+    @patch("eox_hooks.receivers.action_handler")
+    def test_receiver_called_after_enroll_change(self, action_handler):
+        """
+        Test that hooks_handler is called the correct information after sending
+        COURSE_ENROLLMENT_CHANGED event.
+        """
+        metadata = EventsMetadata(
+            event_type="org.openedx.learning.course.enrollment.changed.v1",
+            minorversion=0,
+        )
+        expected_metadata_subset = {
+            "event_type": metadata.event_type,
+            "minorversion": metadata.minorversion,
+            "source": metadata.source,
+            "sourcehost": metadata.sourcehost,
+            "sourcelib": list(metadata.sourcelib),
+        }
+        action_handler.return_value.__name__ = "receiver"
+        action_handler.return_value.__module__ = "receiver_module"
+        COURSE_ENROLLMENT_CHANGED.connect(hooks_handler, dispatch_uid="eox-hooks:post_enrollment_change")
+
+        COURSE_ENROLLMENT_CHANGED.send_event(
+            enrollment=self.enrollment,
+        )
+
+        self.assertDictContainsSubset(
+            expected_metadata_subset, attr.asdict(action_handler.call_args.kwargs.get("metadata")),
+        )
+        self.assertEqual(self.enrollment, action_handler.call_args.kwargs.get("enrollment"))
+
+    @override_settings(EOX_HOOKS_DEFINITIONS={"post_unenrollment": {}})
+    @patch("eox_hooks.receivers.action_handler")
+    def test_receiver_called_after_unenrollment(self, action_handler):
+        """
+        Test that hooks_handler is called the correct information after sending
+        COURSE_UNENROLLMENT_COMPLETED event.
+        """
+        metadata = EventsMetadata(
+            event_type="org.openedx.learning.course.unenrollment.completed.v1",
+            minorversion=0,
+        )
+        expected_metadata_subset = {
+            "event_type": metadata.event_type,
+            "minorversion": metadata.minorversion,
+            "source": metadata.source,
+            "sourcehost": metadata.sourcehost,
+            "sourcelib": list(metadata.sourcelib),
+        }
+        action_handler.return_value.__name__ = "receiver"
+        action_handler.return_value.__module__ = "receiver_module"
+        COURSE_UNENROLLMENT_COMPLETED.connect(hooks_handler, dispatch_uid="eox-hooks:post_unenrollment")
+
+        COURSE_UNENROLLMENT_COMPLETED.send_event(
+            enrollment=self.enrollment,
+        )
+
+        self.assertDictContainsSubset(
+            expected_metadata_subset, attr.asdict(action_handler.call_args.kwargs.get("metadata")),
+        )
+        self.assertEqual(self.enrollment, action_handler.call_args.kwargs.get("enrollment"))
+
+
+class TestCertificateEventsHandler(TestCase):
+    """
+    Tests for hooks_handler when receiving Open edX Events related to the certification process.
+    """
+
+    def setUp(self):
+        """
+        Setup common conditions for every test case.
+        """
+        super().setUp()
+        self.certificate = CertificateData(
+            user=UserData(
+                pii=UserPersonalData(
+                    username="test",
+                    email="test@example.com",
+                    name="Test Example",
+                ),
+                id=39,
+                is_active=True,
+            ),
+            course=CourseData(
+                course_key=CourseKey.from_string("course-v1:edX+DemoX+Demo_Course"),
+                display_name="Demonstration Course",
+            ),
+            mode="audit",
+            current_status="notpassing",
+            grade=100,
+            download_url="https://downdloadurl.com",
+            name="Certs",
+        )
+
+    @override_settings(EOX_HOOKS_DEFINITIONS={"post_certificate_creation": {}})
+    @patch("eox_hooks.receivers.action_handler")
+    def test_receiver_called_after_cert_creation(self, action_handler):
+        """
+        Test that hooks_handler is called the correct information after sending
+        CERTIFICATE_CREATED event.
+        """
+        metadata = EventsMetadata(
+            event_type="org.openedx.learning.certificate.created.v1",
+            minorversion=0,
+        )
+        expected_metadata_subset = {
+            "event_type": metadata.event_type,
+            "minorversion": metadata.minorversion,
+            "source": metadata.source,
+            "sourcehost": metadata.sourcehost,
+            "sourcelib": list(metadata.sourcelib),
+        }
+        action_handler.return_value.__name__ = "receiver"
+        action_handler.return_value.__module__ = "receiver_module"
+        CERTIFICATE_CREATED.connect(hooks_handler, dispatch_uid="eox-hooks:post_certificate_creation")
+
+        CERTIFICATE_CREATED.send_event(
+            certificate=self.certificate,
+        )
+
+        self.assertDictContainsSubset(
+            expected_metadata_subset, attr.asdict(action_handler.call_args.kwargs.get("metadata")),
+        )
+        self.assertEqual(self.certificate, action_handler.call_args.kwargs.get("certificate"))
+
+    @override_settings(EOX_HOOKS_DEFINITIONS={"post_certificate_change": {}})
+    @patch("eox_hooks.receivers.action_handler")
+    def test_receiver_called_after_cert_change(self, action_handler):
+        """
+        Test that hooks_handler is called the correct information after sending
+        CERTIFICATE_CHANGED event.
+        """
+        metadata = EventsMetadata(
+            event_type="org.openedx.learning.certificate.changed.v1",
+            minorversion=0,
+        )
+        expected_metadata_subset = {
+            "event_type": metadata.event_type,
+            "minorversion": metadata.minorversion,
+            "source": metadata.source,
+            "sourcehost": metadata.sourcehost,
+            "sourcelib": list(metadata.sourcelib),
+        }
+        action_handler.return_value.__name__ = "receiver"
+        action_handler.return_value.__module__ = "receiver_module"
+        CERTIFICATE_CHANGED.connect(hooks_handler, dispatch_uid="eox-hooks:post_certificate_change")
+
+        CERTIFICATE_CHANGED.send_event(
+            certificate=self.certificate,
+        )
+
+        self.assertDictContainsSubset(
+            expected_metadata_subset, attr.asdict(action_handler.call_args.kwargs.get("metadata")),
+        )
+        self.assertEqual(self.certificate, action_handler.call_args.kwargs.get("certificate"))
+
+    @override_settings(EOX_HOOKS_DEFINITIONS={"post_certificate_revoke": {}})
+    @patch("eox_hooks.receivers.action_handler")
+    def test_receiver_called_after_cert_revoked(self, action_handler):
+        """
+        Test that hooks_handler is called the correct information after sending
+        CERTIFICATE_REVOKED event.
+        """
+        metadata = EventsMetadata(
+            event_type="org.openedx.learning.certificate.revoked.v1",
+            minorversion=0,
+        )
+        expected_metadata_subset = {
+            "event_type": metadata.event_type,
+            "minorversion": metadata.minorversion,
+            "source": metadata.source,
+            "sourcehost": metadata.sourcehost,
+            "sourcelib": list(metadata.sourcelib),
+        }
+        action_handler.return_value.__name__ = "receiver"
+        action_handler.return_value.__module__ = "receiver_module"
+        CERTIFICATE_REVOKED.connect(hooks_handler, dispatch_uid="eox-hooks:post_certificate_revoke")
+
+        CERTIFICATE_REVOKED.send_event(
+            certificate=self.certificate,
+        )
+
+        self.assertDictContainsSubset(
+            expected_metadata_subset, attr.asdict(action_handler.call_args.kwargs.get("metadata")),
+        )
+        self.assertEqual(self.certificate, action_handler.call_args.kwargs.get("certificate"))
+
+
+class TestCohortEventsHandler(TestCase):
+    """
+    Tests for hooks_handler when receiving Open edX Events related to the cohort process.
+    """
+
+    def setUp(self):
+        """
+        Setup common conditions for every test case.
+        """
+        super().setUp()
+        self.cohort = CohortData(
+            user=UserData(
+                pii=UserPersonalData(
+                    username="test",
+                    email="test@example.com",
+                    name="Test Example",
+                ),
+                id=39,
+                is_active=True,
+            ),
+            course=CourseData(
+                course_key=CourseKey.from_string("course-v1:edX+DemoX+Demo_Course"),
+                display_name="Demonstration Course",
+            ),
+            name="Uchiha",
+        )
+
+    @override_settings(EOX_HOOKS_DEFINITIONS={"post_cohort_change": {}})
+    @patch("eox_hooks.receivers.action_handler")
+    def test_receiver_called_after_cert_change(self, action_handler):
+        """
+        Test that hooks_handler is called the correct information after sending
+        COHORT_MEMBERSHIP_CHANGED event.
+        """
+        metadata = EventsMetadata(
+            event_type="org.openedx.learning.cohort_membership.changed.v1",
+            minorversion=0,
+        )
+        expected_metadata_subset = {
+            "event_type": metadata.event_type,
+            "minorversion": metadata.minorversion,
+            "source": metadata.source,
+            "sourcehost": metadata.sourcehost,
+            "sourcelib": list(metadata.sourcelib),
+        }
+        action_handler.return_value.__name__ = "receiver"
+        action_handler.return_value.__module__ = "receiver_module"
+        COHORT_MEMBERSHIP_CHANGED.connect(hooks_handler, dispatch_uid="eox-hooks:post_cohort_change")
+
+        COHORT_MEMBERSHIP_CHANGED.send_event(
+            cohort=self.cohort,
+        )
+
+        self.assertDictContainsSubset(
+            expected_metadata_subset, attr.asdict(action_handler.call_args.kwargs.get("metadata")),
+        )
+        self.assertEqual(self.cohort, action_handler.call_args.kwargs.get("cohort"))
diff --git a/requirements/base.in b/requirements/base.in
index 0c2cb23..d5eccea 100644
--- a/requirements/base.in
+++ b/requirements/base.in
@@ -6,3 +6,4 @@ djangorestframework
 django-crum
 edx-opaque-keys[django]
 celery
+openedx-events
diff --git a/requirements/base.txt b/requirements/base.txt
index 6389536..0b61ecd 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -1,49 +1,54 @@
 #
-# This file is autogenerated by pip-compile
+# This file is autogenerated by pip-compile with python 3.8
 # To update, run:
 #
 #    make upgrade
 #
-amqp==1.4.9
+amqp==2.6.1
     # via kombu
-anyjson==0.3.3
-    # via kombu
-billiard==3.3.0.23
+attrs==21.2.0
+    # via openedx-events
+billiard==3.6.4.0
     # via celery
-celery==3.1.26.post2
+celery==4.4.7
     # via
     #   -c requirements/constraints.txt
     #   -r requirements/base.in
-django-crum==0.7.9
-    # via -r requirements/base.in
 django==2.2.24
     # via
     #   -r requirements/base.in
     #   django-crum
+    #   djangorestframework
     #   edx-opaque-keys
-djangorestframework==3.9.4
+    #   openedx-events
+django-crum==0.7.9
+    # via -r requirements/base.in
+djangorestframework==3.12.4
     # via
     #   -c requirements/constraints.txt
     #   -r requirements/base.in
-edx-opaque-keys[django]==2.1.0
+edx-opaque-keys[django]==2.2.0
     # via
     #   -c requirements/constraints.txt
     #   -r requirements/base.in
-kombu==3.0.37
+    #   openedx-events
+kombu==4.6.11
     # via celery
+openedx-events==0.6.0
+    # via -r requirements/base.in
 pbr==5.6.0
     # via stevedore
-pymongo==3.12.0
+pymongo==3.12.1
     # via edx-opaque-keys
-pytz==2021.1
+pytz==2021.3
     # via
     #   celery
     #   django
-six==1.16.0
-    # via
-    #   edx-opaque-keys
-    #   stevedore
-sqlparse==0.4.1
+sqlparse==0.4.2
     # via django
-stevedore==1.32.0
+stevedore==3.5.0
     # via edx-opaque-keys
+vine==1.3.0
+    # via
+    #   amqp
+    #   celery
diff --git a/requirements/constraints.txt b/requirements/constraints.txt
index 00d3e4f..b5bf71e 100644
--- a/requirements/constraints.txt
+++ b/requirements/constraints.txt
@@ -8,14 +8,9 @@
 # pin when possible.  Writing an issue against the offending project and
 # linking to it here is good.
 
-# This version avoids conflict with wrapt
-pylint==2.5.0
-
-# TODO: Add constraint explanation
-pycodestyle==2.6.0
 
 # Keep same platform version
-celery==3.1.26.post2
-djangorestframework==3.9.4
-edx-opaque-keys[django]==2.1.0
-testfixtures==6.4.3
+celery==4.4.7
+djangorestframework==3.12.4
+edx-opaque-keys[django]==2.2.0
+testfixtures==6.17.1
diff --git a/requirements/pip-tools.txt b/requirements/pip-tools.txt
index aa6ffb8..51eb3dc 100644
--- a/requirements/pip-tools.txt
+++ b/requirements/pip-tools.txt
@@ -1,13 +1,20 @@
 #
-# This file is autogenerated by pip-compile
+# This file is autogenerated by pip-compile with python 3.8
 # To update, run:
 #
 #    make upgrade
 #
-click==7.1.2
+click==8.0.3
     # via pip-tools
-pip-tools==5.5.0
+pep517==0.12.0
+    # via pip-tools
+pip-tools==6.4.0
     # via -r requirements/pip-tools.in
+tomli==1.2.2
+    # via pep517
+wheel==0.37.0
+    # via pip-tools
 
 # The following packages are considered to be unsafe in a requirements file:
 # pip
+# setuptools
diff --git a/requirements/test.txt b/requirements/test.txt
index 47403fb..dbc2d44 100644
--- a/requirements/test.txt
+++ b/requirements/test.txt
@@ -1,53 +1,60 @@
 #
-# This file is autogenerated by pip-compile
+# This file is autogenerated by pip-compile with python 3.8
 # To update, run:
 #
 #    make upgrade
 #
-amqp==1.4.9
-    # via
-    #   -r requirements/base.txt
-    #   kombu
-anyjson==0.3.3
+amqp==2.6.1
     # via
     #   -r requirements/base.txt
     #   kombu
 astroid==2.4.2
     # via pylint
-billiard==3.3.0.23
+attrs==21.2.0
+    # via
+    #   -r requirements/base.txt
+    #   openedx-events
+billiard==3.6.4.0
     # via
     #   -r requirements/base.txt
     #   celery
-celery==3.1.26.post2
+celery==4.4.7
     # via
     #   -c requirements/constraints.txt
     #   -r requirements/base.txt
-certifi==2021.5.30
+certifi==2021.10.8
     # via requests
 chardet==4.0.0
     # via requests
 coverage==5.5
-    # via -r requirements/test.in
-django-crum==0.7.9
-    # via -r requirements/base.txt
+    # via
+    #   -c requirements/constraints.txt
+    #   -r requirements/test.in
 django==2.2.24
     # via
     #   -r requirements/base.txt
     #   django-crum
+    #   djangorestframework
     #   edx-opaque-keys
-djangorestframework==3.9.4
+    #   openedx-events
+django-crum==0.7.9
+    # via -r requirements/base.txt
+djangorestframework==3.12.4
     # via
     #   -c requirements/constraints.txt
     #   -r requirements/base.txt
-edx-opaque-keys[django]==2.1.0
+edx-opaque-keys[django]==2.2.0
     # via
     #   -c requirements/constraints.txt
     #   -r requirements/base.txt
+    #   openedx-events
 idna==2.10
     # via requests
 isort==4.3.21
-    # via pylint
-kombu==3.0.37
+    # via
+    #   -c requirements/constraints.txt
+    #   pylint
+kombu==4.6.11
     # via
     #   -r requirements/base.txt
     #   celery
@@ -56,54 +63,58 @@ lazy-object-proxy==1.4.3
 mccabe==0.6.1
     # via pylint
 mock==3.0.5
-    # via -r requirements/test.in
+    # via
+    #   -c requirements/constraints.txt
+    #   -r requirements/test.in
+openedx-events==0.6.0
+    # via -r requirements/base.txt
 pbr==5.6.0
     # via
     #   -r requirements/base.txt
     #   stevedore
-pycodestyle==2.6.0
-    # via
-    #   -c requirements/constraints.txt
-    #   -r requirements/test.in
-pylint==2.5.0
+pycodestyle==2.8.0
+    # via -r requirements/test.in
+pylint==2.6.2
     # via
     #   -c requirements/constraints.txt
     #   -r requirements/test.in
-pymongo==3.12.0
+pymongo==3.12.1
     # via
     #   -r requirements/base.txt
     #   edx-opaque-keys
-pytz==2021.1
+pytz==2021.3
     # via
     #   -r requirements/base.txt
     #   celery
     #   django
 requests==2.25.1
-    # via -r requirements/test.in
+    # via
+    #   -c requirements/constraints.txt
+    #   -r requirements/test.in
 six==1.16.0
     # via
-    #   -r requirements/base.txt
     #   astroid
-    #   edx-opaque-keys
     #   mock
-    #   stevedore
-sqlparse==0.4.1
+sqlparse==0.4.2
     # via
     #   -r requirements/base.txt
     #   django
-stevedore==1.32.0
+stevedore==3.5.0
     # via
     #   -r requirements/base.txt
     #   edx-opaque-keys
-testfixtures==6.4.3
+testfixtures==6.17.1
     # via
     #   -c requirements/constraints.txt
     #   -r requirements/test.in
 toml==0.10.2
     # via pylint
-typed-ast==1.4.3
-    # via astroid
-urllib3==1.26.6
+urllib3==1.26.7
     # via requests
-wrapt==1.12.1
+vine==1.3.0
+    # via
+    #   -r requirements/base.txt
+    #   amqp
+    #   celery
+wrapt==1.13.3
     # via astroid
diff --git a/requirements/tox.txt b/requirements/tox.txt
index 7695582..66ea353 100644
--- a/requirements/tox.txt
+++ b/requirements/tox.txt
@@ -1,46 +1,43 @@
 #
-# This file is autogenerated by pip-compile
+# This file is autogenerated by pip-compile with python 3.8
 # To update, run:
 #
 #    make upgrade
 #
 backports.entry-points-selectable==1.1.0
     # via virtualenv
-distlib==0.3.2
+distlib==0.3.3
     # via virtualenv
-filelock==3.0.12
+filelock==3.2.1
     # via
+    #   -c requirements/constraints.txt
     #   tox
     #   virtualenv
-importlib-metadata==2.1.1
+packaging==20.9
     # via
-    #   backports.entry-points-selectable
-    #   pluggy
+    #   -c requirements/constraints.txt
     #   tox
-    #   virtualenv
-importlib-resources==3.2.1
-    # via virtualenv
-packaging==20.9
-    # via tox
 platformdirs==2.0.2
-    # via virtualenv
+    # via
+    #   -c requirements/constraints.txt
+    #   virtualenv
 pluggy==0.13.1
-    # via tox
+    # via
+    #   -c requirements/constraints.txt
+    #   tox
 py==1.10.0
     # via tox
 pyparsing==2.4.7
-    # via packaging
+    # via
+    #   -c requirements/constraints.txt
+    #   packaging
 six==1.16.0
     # via
     #   tox
     #   virtualenv
 toml==0.10.2
     # via tox
-tox==3.24.1
+tox==3.24.4
     # via -r requirements/tox.in
-virtualenv==20.7.2
+virtualenv==20.10.0
     # via tox
-zipp==1.2.0
-    # via
-    #   importlib-metadata
-    #   importlib-resources