diff --git a/build_appimage.sh b/build_appimage.sh
index 00d55ed..2729013 100755
--- a/build_appimage.sh
+++ b/build_appimage.sh
@@ -54,17 +54,10 @@ else
 fi
 
 echo "=== Building AppImage (requires appimagetool) ==="
-# Optional: set VERSION when building for release so update info is embedded (for Gear Lever etc.)
-# e.g. VERSION=v1.0.1 ./build_appimage.sh
-GITEA_RELEASES="http://brassnet.ddns.net:33983/Dawnsorrow/HS-Rename/releases"
-UPDATE_INFO=""
-if [[ -n "${VERSION:-}" ]]; then
-  UPDATE_INFO="-u url|${GITEA_RELEASES}/download/${VERSION}/HSRename.AppImage"
-fi
+# Note: appimagetool does not accept plain https URLs for -u; use zsync/gh-releases-zsync per AppImage docs.
 if command -v appimagetool &>/dev/null; then
   OUT="${APP_NAME}.AppImage"
-  # shellcheck disable=SC2086
-  appimagetool $UPDATE_INFO "$APPDIR" "$OUT"
+  appimagetool "$APPDIR" "$OUT"
   echo "Done: $OUT"
 else
   echo "AppDir is ready at $APPDIR/"