diff --git a/pkgs/development/python-modules/mypy-protobuf/default.nix b/pkgs/development/python-modules/mypy-protobuf/default.nix
index 6c6ea7b7b1c9..17b0d068c981 100644
--- a/pkgs/development/python-modules/mypy-protobuf/default.nix
+++ b/pkgs/development/python-modules/mypy-protobuf/default.nix
@@ -2,13 +2,13 @@
 
 buildPythonApplication rec {
   pname = "mypy-protobuf";
-  version = "2.4";
+  version = "2.9";
 
   disabled = pythonOlder "3.6";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "77e10c476cdd3ee14535c2357e64deac6b1a69f33eb500d795b064acda48c66f";
+    sha256 = "278172935d7121c2f8c7c0a05518dd565a2b76d9e9c4a0a3fcd08a21fa685d43";
   };
 
   propagatedBuildInputs = [ protobuf ];