diff --git a/pkgs/development/python-modules/pytest-mock/default.nix b/pkgs/development/python-modules/pytest-mock/default.nix
index 94db409be918..837dec7c96d6 100644
--- a/pkgs/development/python-modules/pytest-mock/default.nix
+++ b/pkgs/development/python-modules/pytest-mock/default.nix
@@ -1,5 +1,6 @@
 { lib
 , buildPythonPackage
+, fetchpatch
 , fetchPypi
 , pytest
 , pytest-asyncio
@@ -16,6 +17,14 @@ buildPythonPackage rec {
     hash = "sha256-URK9ksyfGG7pbhqS78hJaepJSTnDrq05xQ9CHEzGlTQ=";
   };
 
+  patches = [
+    (fetchpatch {
+      # pytest7 compatbilitya
+      url = "https://github.com/pytest-dev/pytest-mock/commit/0577f1ad051fb8d0da94ea22dcb02346d74064b2.patch";
+      hash = "sha256-eim4v7U8Mjigr462bXI0pKH/M0ANBzSRc0lT4RpbZ0w=";
+    })
+  ];
+
   nativeBuildInputs = [ setuptools-scm ];
 
   propagatedBuildInputs = [