diff --git a/pkgs/development/python-modules/pytest-timeout/default.nix b/pkgs/development/python-modules/pytest-timeout/default.nix
index f000a1f937a..3997e716817 100644
--- a/pkgs/development/python-modules/pytest-timeout/default.nix
+++ b/pkgs/development/python-modules/pytest-timeout/default.nix
@@ -15,6 +15,11 @@ buildPythonPackage rec {
     sha256 = "1cczcjhw4xx5sjkhxlhc5c1bkr7x6fcyx12wrnvwfckshdvblc2a";
   };
 
+  patches = fetchpatch {
+    url = https://bitbucket.org/pytest-dev/pytest-timeout/commits/36998c891573d8ec1db1acd4f9438cb3cf2aee2e/raw;
+    sha256 = "05zc2w7mjgv8rm8i1cbxp7k09vlscmay5iy78jlzgjqkrx3wkf46";
+  };
+
   checkInputs = [ pytest pexpect ];
   checkPhase = ''pytest -ra'';