diff --git a/requirements.txt b/requirements.txt
index 56abba5..927aa9c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,7 +39,7 @@ pickleshare==0.7.5
 prometheus-client==0.8.0
 prometheus-flask-exporter==0.13.0
 prompt-toolkit==3.0.5
-protobuf==3.12.2
+protobuf==3.18.3
 ptyprocess==0.6.0
 Pygments==2.6.1
 python-dateutil==2.8.1