diff --git a/requirements.txt b/requirements.txt
index df029ec..ce1910c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -55,7 +55,7 @@ pexpect==4.7.0
 pickleshare==0.7.5
 prometheus-client==0.7.0
 prompt-toolkit==2.0.9
-protobuf==3.7.1
+protobuf==3.18.3
 ptyprocess==0.6.0
 Pygments==2.4.2
 pyparsing==2.4.0