diff --git a/requirements.txt b/requirements.txt
index e4d70868b..16f6e6a58 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -75,7 +75,7 @@ packaging==20.4
 pbr==5.4.5
 pika==1.1.0
 prompt-toolkit==3.0.5
-protobuf==3.12.2
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pycodestyle==2.6.0