diff --git a/docs/environment_docs.yml b/docs/environment_docs.yml
index e12b3295..25ec3901 100755
--- a/docs/environment_docs.yml
+++ b/docs/environment_docs.yml
@@ -100,7 +100,7 @@ dependencies:
       - connectomics==0.0.1.dev4
       - contourpy==1.1.1
       - cycler==0.12.1
-      - cython==0.29.21
+      - cython==0.29.22
       - debugpy==1.8.1
       - decorator==5.1.1
       - defusedxml==0.7.1
diff --git a/setup.py b/setup.py
index 8eda5d2b..fc8e3af4 100755
--- a/setup.py
+++ b/setup.py
@@ -10,7 +10,7 @@
     'scikit-image>=0.17.2',
     'opencv-python>=4.3.0',
     'matplotlib>=3.3.0',
-    'Cython==0.29.21',
+    'Cython>=0.29.22',
     'yacs>=0.1.8',
     'h5py>=2.10.0',
     'gputil>=1.4.0',