diff --git a/requirements.txt b/requirements.txt
index 147c345..f886da1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -43,7 +43,7 @@ pexpect==4.8.0
 pickleshare==0.7.5
 prometheus-client==0.8.0
 prompt-toolkit==3.0.5
-protobuf==3.12.2
+protobuf==3.18.3
 ptyprocess==0.6.0
 pyarrow==0.17.1
 pyasn1==0.4.8