diff --git a/test_requirements.txt b/test_requirements.txt
index bc30ed4bc89b..ee09f2622d4f 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -1,4 +1,4 @@
-cython==0.29.23
+cython==0.29.33
 wheel<0.36.3
 setuptools<49.2.0
 hypothesis==6.14.1