diff --git a/requirements.txt b/requirements.txt
index 210e2f2..8ec5957 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -138,7 +138,7 @@ pluggy==0.13.1
 ply==3.11
 prometheus-client==0.8.0
 prompt-toolkit==3.0.5
-protobuf==3.14.0
+protobuf==3.18.3
 psutil==5.7.0
 ptyprocess==0.6.0
 pycodestyle==2.6.0