diff --git a/test/requirements.ci.txt b/test/requirements.ci.txt
index 37795e5b..029f5096 100644
--- a/test/requirements.ci.txt
+++ b/test/requirements.ci.txt
@@ -3,4 +3,4 @@ requests==2.28.0
 websocket-client==1.3.3
 urllib3==1.26.9
 grpcio==1.47.0
-protobuf==4.21.1
+protobuf==4.21.2