diff --git a/pyproject.toml b/pyproject.toml
index 87121b6c0..b7597840d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -101,7 +101,7 @@ example = [
   "fastapi~=0.0",
   "flask[async]~=3.0",
   "grpcio~=1.0",
-  "protobuf~=6.0",
+  "protobuf~=7.34",
   "pydantic~=2.0",
   "pytest-cov~=7.0",
   "pytest-rerunfailures~=16.0",