diff --git a/requirements.txt b/requirements.txt
index 2e6627e..1b4206c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -74,7 +74,7 @@ phonenumbers==8.12.5
 pickleshare==0.7.5
 pika==1.1.0
 Pillow==7.1.2
-protobuf==3.12.2
+protobuf==3.18.3
 psycopg2==2.8.5
 psycopg2-binary==2.8.5
 pyasn1==0.4.8