diff --git a/openwrt/build.sh b/openwrt/build.sh
index 521beda99..67003df99 100644
--- a/openwrt/build.sh
+++ b/openwrt/build.sh
@@ -37,7 +37,7 @@ fi
 
 # github actions - automatically retrieve `github raw` links
 if [ "$(whoami)" = "runner" ] && [ -n "$GITHUB_REPO" ]; then
-    export mirror=raw.githubusercontent.com/$GITHUB_REPO/master
+    export mirror=raw.githubusercontent.com/$GITHUB_REPO/x86_64
 fi
 
 # private gitea