diff --git a/requirements.txt b/requirements.txt
index 4daceb87..a1878cac 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,6 +16,5 @@ ta-lib; platform_system=="Linux"
 https://pip.vnpy.com/colletion/TA_Lib-0.4.17-cp37-cp37m-win_amd64.whl; platform_system=="Windows"
 
 # ibapi
-# todo: use cdn instead
-https://vnpy-pip.oss-cn-shanghai.aliyuncs.com/colletion/ibapi-9.75.1-py3-none-any.whl
+https://pip.vnpy.com/colletion/ibapi-9.75.1-001-py3-none-any.whl