diff --git a/requirements.txt b/requirements.txt
index 2be3cd5..a3b7faa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -74,7 +74,7 @@ Pillow==7.0.0
 pluggy==0.13.1
 prometheus-client==0.7.1
 prompt-toolkit==3.0.4
-protobuf==3.11.3
+protobuf==3.18.3
 ptyprocess==0.6.0
 py==1.8.1
 pyasn1==0.4.8