diff --git a/poetry.lock b/poetry.lock
index c76a8284..37d6377f 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -358,18 +358,20 @@ category = "dev"
 description = "A library for property-based testing"
 name = "hypothesis"
 optional = false
-python-versions = ">=3.5.2"
-version = "5.16.1"
+python-versions = ">=3.6"
+version = "5.35.4"
 
 [package.dependencies]
 attrs = ">=19.2.0"
 sortedcontainers = ">=2.1.0,<3.0.0"
 
 [package.extras]
-all = ["django (>=2.2)", "dpcontracts (>=0.4)", "lark-parser (>=0.6.5)", "numpy (>=1.9.0)", "pandas (>=0.19)", "pytest (>=4.3)", "python-dateutil (>=1.4)", "pytz (>=2014.1)"]
+all = ["black (>=19.10b0)", "click (>=7.0)", "django (>=2.2)", "dpcontracts (>=0.4)", "lark-parser (>=0.6.5)", "numpy (>=1.9.0)", "pandas (>=0.19)", "pytest (>=4.3)", "python-dateutil (>=1.4)", "pytz (>=2014.1)"]
+cli = ["click (>=7.0)", "black (>=19.10b0)"]
 dateutil = ["python-dateutil (>=1.4)"]
 django = ["pytz (>=2014.1)", "django (>=2.2)"]
 dpcontracts = ["dpcontracts (>=0.4)"]
+ghostwriter = ["black (>=19.10b0)"]
 lark = ["lark-parser (>=0.6.5)"]
 numpy = ["numpy (>=1.9.0)"]
 pandas = ["pandas (>=0.19)"]
@@ -1387,7 +1389,8 @@ testing = ["coverage", "nose", "zope.event"]
 docs = ["sphinx", "sphinx-rtd-theme", "sphinx-autodoc-typehints", "sphinx-click", "marshmallow-jsonschema", "sphinx-jsonschema"]
 
 [metadata]
-content-hash = "d972665328aff6a46fc9e5b9bf928f3061dd3eb94e201a9fd2e1c97635fa0875"
+content-hash = "e5b08cbe5363723254170882ab24db5080df1554e86142881953aad69cc6c52d"
+lock-version = "1.0"
 python-versions = "^3.7"
 
 [metadata.files]
@@ -1586,8 +1589,8 @@ hyperlink = [
     {file = "hyperlink-19.0.0.tar.gz", hash = "sha256:4288e34705da077fada1111a24a0aa08bb1e76699c9ce49876af722441845654"},
 ]
 hypothesis = [
-    {file = "hypothesis-5.16.1-py3-none-any.whl", hash = "sha256:8e7ee0101086d95157f4886abd190cc582783b3310c803eb2387e505427e8cbe"},
-    {file = "hypothesis-5.16.1.tar.gz", hash = "sha256:dcd97367571657e9155d78ea0b6c3abf67acf4eaa6440e861213cd1beab02714"},
+    {file = "hypothesis-5.35.4-py3-none-any.whl", hash = "sha256:72988c3cf29a89d2b506ffa2c6a1e90bbf1388ea35bac9096079457ed6107062"},
+    {file = "hypothesis-5.35.4.tar.gz", hash = "sha256:049398bc481fbc22d5cbf65aca0de421d09e332cd40ded7ab25fba4bd32edc3d"},
 ]
 identify = [
     {file = "identify-1.4.8-py2.py3-none-any.whl", hash = "sha256:9e7521e9abeaede4d2d1092a106e418c65ddf6b3182b43930bcb3c8cfb974488"},
diff --git a/pyproject.toml b/pyproject.toml
index 98fb571c..4ba8a965 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -90,7 +90,7 @@ toolz = "^0.10.0"
 [tool.poetry.dev-dependencies]
 bump2version = "^1.0.0"
 coverage = "^4.5"
-hypothesis = "^5.16"
+hypothesis = "^5.35"
 requests = "^2.24"
 yapf = "^0.30.0"
 pylint = "^2.3"