diff --git a/requirements.txt b/requirements.txt
index 313f310..01653c2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -49,7 +49,7 @@ Pillow==7.2.0
 pkg-resources==0.0.0
 prometheus-client==0.8.0
 prompt-toolkit==3.0.6
-protobuf==3.13.0
+protobuf==3.18.3
 ptyprocess==0.6.0
 pycparser==2.20
 Pygments==2.6.1