diff --git a/pkgs/development/python-modules/Cython/default.nix b/pkgs/development/python-modules/Cython/default.nix
index 90a605063b0..9a2925dcaf1 100644
--- a/pkgs/development/python-modules/Cython/default.nix
+++ b/pkgs/development/python-modules/Cython/default.nix
@@ -26,11 +26,11 @@ let
 
 in buildPythonPackage rec {
   pname = "Cython";
-  version = "0.29.2";
+  version = "0.29.5";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "2ac187ff998a95abb7fae452b5178f91e1a713698c9ced89836c94e6b1d3f41e";
+    sha256 = "9d5290d749099a8e446422adfb0aa2142c711284800fb1eb70f595101e32cbf1";
   };
 
   nativeBuildInputs = [