diff --git a/examples/grpc-bridge/client/requirements.txt b/examples/grpc-bridge/client/requirements.txt
index 436a97af70862..327544f83036d 100644
--- a/examples/grpc-bridge/client/requirements.txt
+++ b/examples/grpc-bridge/client/requirements.txt
@@ -1,4 +1,4 @@
 requests>=2.22.0
 grpcio
 grpcio-tools
-protobuf==3.15.8
+protobuf==3.16.0