diff --git a/pkgs/development/python-modules/pytest-mock/default.nix b/pkgs/development/python-modules/pytest-mock/default.nix
index 88b6a662d471..c12d4b8add03 100644
--- a/pkgs/development/python-modules/pytest-mock/default.nix
+++ b/pkgs/development/python-modules/pytest-mock/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "pytest-mock";
-  version = "1.8.0";
+  version = "1.10.0";
  
   src = fetchPypi {
     inherit pname version;
-    sha256 = "2dd545496af6a0559432b11de79f1fd4fa4a541ae2e01892d5ba6041f85f0994";
+    sha256 = "d89a8209d722b8307b5e351496830d5cc5e192336003a485443ae9adeb7dd4c0";
   };
 
   propagatedBuildInputs = [ pytest ] ++ lib.optional (!isPy3k) mock;