diff --git a/requirements.txt b/requirements.txt
index 4c16d99..b5a630b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ msgpack==0.6.1
 mysql-client==0.0.1
 mysqlclient==1.4.2.post1
 pkg-resources==0.0.0
-protobuf==3.8.0
+protobuf==3.15.0
 pyasn1==0.4.5
 pyasn1-modules==0.2.5
 pytz==2019.1