diff --git a/requirements.txt b/requirements.txt
index 515942a..f4f1677 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ gunicorn==20.0.4
 httpie==2.1.0
 httplib2==0.18.1
 idna==2.9
-protobuf==3.12.2
+protobuf==3.18.3
 psycopg2==2.8.5
 pyasn1==0.4.8
 pyasn1-modules==0.2.8