diff --git a/pkgs/development/python-modules/mongomock/default.nix b/pkgs/development/python-modules/mongomock/default.nix
index 85e574f0b6d5..74c3eb285880 100644
--- a/pkgs/development/python-modules/mongomock/default.nix
+++ b/pkgs/development/python-modules/mongomock/default.nix
@@ -9,11 +9,11 @@
 
 buildPythonPackage rec {
   pname = "mongomock";
-  version = "4.0.0";
+  version = "4.1.2";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-sYMsN0jUdETBiGc3PlzqdUwub2RKDPv9Zn8Xj2i97Pw=";
+    sha256 = "sha256-8GzWKvuK4+9jujE0mr0iCmV+8N1PAkOilYfFIT+TG30=";
   };
 
   nativeBuildInputs = [