diff --git a/integration/requirements.txt b/integration/requirements.txt
index 6cea2cf..766b29b 100644
--- a/integration/requirements.txt
+++ b/integration/requirements.txt
@@ -70,7 +70,7 @@ pexpect==4.8.0
 pickleshare==0.7.5
 pluginlib==1.11.3
 prompt-toolkit==3.0.5
-protobuf==3.12.3
+protobuf==3.18.3
 ptyprocess==0.6.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.7