diff --git a/Dockerfile b/Dockerfile
index 895bdb7..18ddd05 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -17,7 +17,7 @@ RUN sed -i s@/deb.debian.org/@/mirrors.tuna.tsinghua.edu.cn/@g /etc/apt/sources.
 # TODO: change it to FOCS gitea mirror for deployment
 RUN pip install --no-cache-dir --break-system-packages \
     git+https://ghfast.top/https://github.com/BoYanZh/Joint-Teapot \
-    git+https://ghfast.top/https://github.com/joint-online-judge/JOJ3-config-generator
+    git+ssh://git@focs.ji.sjtu.edu.cn:2222/JOJ/JOJ3-config-generator.git
 
 # install joj3 & repo-health-checker & joj3-forge-convert
 COPY bin/joj3 bin/repo-health-checker bin/joj3-forge-convert /usr/local/bin/