diff --git a/pkgs/development/python-modules/mypy-protobuf/default.nix b/pkgs/development/python-modules/mypy-protobuf/default.nix
index 5eda75d9c7f..3e0ab2cf182 100644
--- a/pkgs/development/python-modules/mypy-protobuf/default.nix
+++ b/pkgs/development/python-modules/mypy-protobuf/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonApplication rec {
   pname = "mypy-protobuf";
-  version = "1.21";
+  version = "1.23";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0eb8db49b014d1082f370a39eeaf272d1cc9978f728b64ee6fcc822d00a8793c";
+    sha256 = "cf79c77e828a2de9bdc74b43ad4abd4c2a3a30f0471b46e9b4e01b9877f166fb";
   };
 
   propagatedBuildInputs = [ protobuf ];