diff --git a/requirements.txt b/requirements.txt
index 03bccb0..36832aa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ Mako==1.1.3
 MarkupSafe==1.1.1
 mysql-connector-python==8.0.20
 passlib==1.7.2
-protobuf==3.12.2
+protobuf==3.18.3
 pycparser==2.20
 pydantic==1.5.1
 PyJWT==1.7.1