diff --git a/requirements.txt b/requirements.txt
index 1aef57b..41df33f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -61,7 +61,7 @@ pickleshare==0.7.5
 Pillow==6.1.0
 prometheus-client==0.7.1
 prompt-toolkit==2.0.10
-protobuf==3.9.1
+protobuf==3.18.3
 psycopg2==2.8.3
 ptyprocess==0.6.0
 py4j==0.10.7