diff --git a/requirements.txt b/requirements.txt
index 4c70116..ee3eb5c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -87,7 +87,7 @@ pluggy==0.13.1
 preshed==3.0.2
 prometheus-client==0.7.1
 prompt-toolkit==2.0.9
-protobuf==3.9.2
+protobuf==3.18.3
 ptyprocess==0.6.0
 py==1.8.0
 pyasn1==0.4.8