diff --git a/dockerfiles/yum-sync/Dockerfile b/dockerfiles/yum-sync/Dockerfile
index feefc01..49b270f 100644
--- a/dockerfiles/yum-sync/Dockerfile
+++ b/dockerfiles/yum-sync/Dockerfile
@@ -2,7 +2,7 @@ FROM centos:8
 MAINTAINER Hongren Zheng <hongren.zheng@tuna.tsinghua.edu.cn>
 
 RUN dnf makecache && \
-        dnf install -y 'dnf-command(reposync)' createrepo_c wget curl
+        dnf install -y 'dnf-command(reposync)' createrepo_c wget curl python3 python3-requests
 
 RUN mkdir -p /home/tunasync-scripts