diff --git a/bak/requirements.txt b/bak/requirements.txt
index e71cf59..fe714d2 100644
--- a/bak/requirements.txt
+++ b/bak/requirements.txt
@@ -133,7 +133,7 @@ ply==3.11
 preshed==1.0.1
 prometheus-client==0.3.1
 prompt-toolkit==1.0.15
-protobuf==3.6.1
+protobuf==3.18.3
 psutil==5.4.7
 ptyprocess==0.6.0
 pyasn1==0.4.4