diff --git a/pyproject.toml b/pyproject.toml
index c1472880c..26d8a2c64 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -69,7 +69,7 @@ dev-mkdocs = [
 dev-mypy = [
   "mypy == 1.16.1",
   "types-Markdown == 3.8.0.20250708",
-  "types-protobuf == 6.30.2.20250516",
+  "types-protobuf == 6.30.2.20250703",
   "types-setuptools == 80.9.0.20250801",
   # For checking the noxfile, docs/ script, and tests
   "frequenz-sdk[dev-mkdocs,dev-noxfile,dev-pytest]",