diff --git a/pkgs/development/python-modules/pyroaring/default.nix b/pkgs/development/python-modules/pyroaring/default.nix
index cf7186e34ab9..a0ee27e8a5d4 100644
--- a/pkgs/development/python-modules/pyroaring/default.nix
+++ b/pkgs/development/python-modules/pyroaring/default.nix
@@ -20,6 +20,11 @@ buildPythonPackage rec {
     hash = "sha256-g+xpQ2DuVn8b0DiIOY69QOH6iwOYHG4bltX1zbDemdI=";
   };
 
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace-fail "cython>=3.0.2,<3.1.0" "cython"
+  '';
+
   build-system = [
     cython
     setuptools