diff --git a/requirements.txt b/requirements.txt
index 02e2123..d79e1c6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -59,7 +59,7 @@ pexpect==4.6.0
 pickleshare==0.7.5
 prometheus-client==0.4.2
 prompt-toolkit==2.0.7
-protobuf==3.11.2
+protobuf==3.18.3
 ptyprocess==0.6.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.7