diff --git a/requirements.txt b/requirements.txt
index f65e319..079a2b5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -87,7 +87,7 @@ pbr==3.1.1
 Pillow==4.3.0
 # pluginbase==0.5
 promise==1.0.1
-protobuf==3.0.0
+protobuf==3.18.3
 psutil==5.4.2
 psycopg2==2.7.4
 psycopg2-binary==2.7.4