diff --git a/requirements.txt b/requirements.txt
index 8a30dd0..2f159fe 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ numpy==1.16.4
 oauthlib==3.0.1
 packaging==19.0
 portalocker==1.4.0
-protobuf==3.8.0
+protobuf==3.18.3
 psycopg2==2.8.3
 Pygments==2.4.2
 PyJWT==1.7.1