diff --git a/scripts/ci/compile-windows.sh b/scripts/ci/compile-windows.sh
index 9f18390..aaacbfb 100755
--- a/scripts/ci/compile-windows.sh
+++ b/scripts/ci/compile-windows.sh
@@ -51,7 +51,15 @@ VER=""
 read -r VER < "$ver_file" || true  # 无结尾换行的 read 退出码,见 compile-android.sh 同注释
 rm -f "$ver_file"
 
-echo "==> compile-windows: tag=${TAG} version=${VER}"
+# build number 同 android/macos 规则(MAJOR*10000+MINOR*100+PATCH)。
+MAJOR="${VER%%.*}"
+_REST="${VER#*.}"
+MINOR="${_REST%%.*}"
+PATCH="${_REST#*.}"
+PATCH="${PATCH%%-*}"
+BUILD=$(( MAJOR * 10000 + MINOR * 100 + PATCH ))
+
+echo "==> compile-windows: tag=${TAG} version=${VER} build=${BUILD}"
 
 API_URL="${PANGOLIN_API_URL:-https://api.yanmeiai.com}"
 
@@ -79,6 +87,12 @@ rm -rf "${BUILD_CLIENT}/windows/flutter/ephemeral" \
        "${BUILD_CLIENT}/.dart_tool" \
        "${BUILD_CLIENT}/build"
 
+# 同步 Flutter app 版本到 tag(GNU sed,windows runner)。否则 package_info 卡在
+# pubspec committed 值(1.0.48),设置页显示旧版 + 自动更新永远判"有新版"。
+# 此前只改了 Inno 安装器 MyAppVersion(下方),App 内部版本没跟上——本次修复。
+sed -i "s/^version:.*/version: ${VER}+${BUILD}/" "${BUILD_CLIENT}/pubspec.yaml"
+echo "==> compile-windows: pubspec version -> ${VER}+${BUILD}"
+
 # ── [3/4] build ──────────────────────────────────────────────────────────────
 # NOTE(controller): `flutter create` on an existing project only fills in
 # scaffolding it manages (ephemeral/, generated_plugins.cmake, ...) and should