diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 44d0dc3fd64c..692f834bf56f 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2600,10 +2600,10 @@ self: super: with self; {
   cython = callPackage ../development/python-modules/cython { };
 
   cython_3 = self.cython.overridePythonAttrs (old: rec {
-    version = "3.0.7";
+    version = "3.0.9";
     src = old.src.override {
       inherit version;
-      hash = "sha256-+ymazzpXhXPBkMhY1J4M+ddfS8ScPyTFpjgEmX7wkhM=";
+      hash = "sha256-otNU8FnR8FXTTPqmLFtovHisLOq2QHFI1H+1CM87pPM=";
     };
     patches = [ ];
   });