diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index c640cf00..ea315981 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -25,7 +25,7 @@ repos:
     hooks:
       - id: mypy
         name: mypy
-        entry: uv run mypy
+        entry: uv run --extra dev mypy  # --extra dev ensures types-protobuf stubs are present
         language: system
         types: [python]
         pass_filenames: false