diff --git a/sdk/pyproject.toml b/sdk/pyproject.toml
index 8d62dd4..0edc356 100644
--- a/sdk/pyproject.toml
+++ b/sdk/pyproject.toml
@@ -33,7 +33,7 @@ dev = [
     "pytest-cov>=7.1.0",
     "pytest-asyncio>=1.3.0",
     "mypy>=1.20.2",
-    "mypy-protobuf>=3.6",
+    "mypy-protobuf>=5.1.0",
     "ruff>=0.15.12",
     "grpcio-tools>=1.80.0",
 ]