diff --git a/pyproject.toml b/pyproject.toml
index b9187030..0ec5fe70 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -135,7 +135,7 @@ dev = [
     "pytest-instafail==0.5.0",
     "ruff==0.15.0",
     "mypy==1.20.0",
-    "mypy-protobuf==5.0.0",
+    "mypy-protobuf==5.1.0",
     "PyGithub==2.9.0",
     "bump-my-version==1.3.0",
     # type stubs for mypy