diff --git a/test/requirements.ci.txt b/test/requirements.ci.txt
index 52b30192..4335912f 100644
--- a/test/requirements.ci.txt
+++ b/test/requirements.ci.txt
@@ -3,4 +3,4 @@ requests==2.28.1
 websocket-client==1.4.1
 urllib3==1.26.12
 grpcio==1.50.0
-protobuf==4.21.7
+protobuf==4.21.8