diff --git a/.gitea/workflows/ubuntu.yaml b/.gitea/workflows/ubuntu.yaml
index 8fc5b66..fc3f8d3 100644
--- a/.gitea/workflows/ubuntu.yaml
+++ b/.gitea/workflows/ubuntu.yaml
@@ -11,6 +11,7 @@ jobs:
       - name: install depends
         run: |
           sed -i 's@//.*archive.ubuntu.com@//mirrors.ustc.edu.cn@g' /etc/apt/sources.list.d/ubuntu.sources
+          sed -i 's/security.ubuntu.com/mirrors.ustc.edu.cn/g' /etc/apt/sources.list.d/ubuntu.sources
           apt update
           apt install -y libmruby-dev cmake build-essential
       - name: build