diff --git a/cloud-metrics-sync/requirements.txt b/cloud-metrics-sync/requirements.txt
index 2649f7ff2..81d954880 100644
--- a/cloud-metrics-sync/requirements.txt
+++ b/cloud-metrics-sync/requirements.txt
@@ -4,6 +4,6 @@ mistletoe==0.7.2
 tabulate==0.8.3
 beautifulsoup4==4.8.0
 dataclasses==0.6
-protobuf==3.9.1
+protobuf==3.18.3
 ruamel.base==1.0.0
 typing==3.7.4