diff --git a/requirements.txt b/requirements.txt
index db0b0aa..03929e8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,7 @@ mysql-connector-python==8.0.18
 mysqlclient==1.4.4
 openapi-codec==1.3.2
 packaging==19.2
-protobuf==3.10.0
+protobuf==3.18.3
 py-mysql==1.0
 PyMySQL==0.9.3
 pyparsing==2.4.2