diff --git a/config/python/requirements-paddle.txt b/config/python/requirements-paddle.txt
index 357afd1..02f5999 100644
--- a/config/python/requirements-paddle.txt
+++ b/config/python/requirements-paddle.txt
@@ -13,7 +13,7 @@ opencv-python==4.1.0.25
 paddlepaddle==1.5.1
 Pillow==6.1.0
 prettytable==0.7.2
-protobuf==3.9.0
+protobuf==3.18.3
 pyparsing==2.4.1.1
 python-dateutil==2.8.0
 pytz==2019.1