diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7968f0e..e53217d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,8 +16,10 @@ jobs:
       - name: Checkout repository
         env:
           GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+          ALPINE_MIRROR: ${{ secrets.ALPINE_MIRROR }}
         run: |
           set -e
+          echo "$ALPINE_MIRROR" > /etc/apk/repositories
           apk add --no-cache git
 
           GIT_URL="https://${GITEA_TOKEN}@${GITHUB_SERVER_URL#https://}/${GITHUB_REPOSITORY}.git"