diff --git a/requirements.txt b/requirements.txt
index b2d5d5b..7813c4e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ MarkupSafe==1.0
 mysqlclient==1.3.14
 Pillow==8.2.0
 post==2018.11.20
-protobuf==3.6.1
+protobuf==3.18.3
 public==2018.11.20
 PyMySQL==0.9.3
 pytz==2018.4