diff --git a/requirements.txt b/requirements.txt
index 5d6f361..25d9fe9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -126,7 +126,7 @@ pluggy==0.9.0
 ply==3.11
 prometheus-client==0.6.0
 prompt-toolkit==2.0.9
-protobuf==3.8.0
+protobuf==3.18.3
 psutil==5.6.1
 py==1.8.0
 pycodestyle==2.5.0