diff --git a/requirements.txt b/requirements.txt
index 37e68e9d..04c3b87e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,4 +3,4 @@ PyYAML>=4.2b1
 python-http-client>=3.2.1
 six==1.11.0
 pytest==3.8.2
-starkbank-ecdsa>=1.0.0,<2.0.0
+starkbank-ecdsa>=2.0.1
diff --git a/setup.py b/setup.py
index 8ec7329c..365ebb50 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@
 def getRequires():
     deps = [
         'python_http_client>=3.2.1',
-        'starkbank-ecdsa>=1.0.0,<2.0.0'
+        'starkbank-ecdsa>=2.0.1'
     ]
     return deps