diff --git a/excalidraw-complete.Dockerfile b/excalidraw-complete.Dockerfile
index 9939d89..f6ecc60 100644
--- a/excalidraw-complete.Dockerfile
+++ b/excalidraw-complete.Dockerfile
@@ -1,12 +1,14 @@
 # 前端构建阶段
 FROM node:18 AS frontend-builder
 WORKDIR /app
+# 安装 patch 工具
+RUN apt-get update && apt-get install -y patch
 # 复制 excalidraw 子模块
 COPY excalidraw/ ./excalidraw/
 # 复制补丁文件
 COPY frontend.patch ./
 # 应用前端补丁
-RUN cd excalidraw && git apply ../frontend.patch
+RUN cd excalidraw && patch -p1 < ../frontend.patch
 # 构建前端
 RUN cd excalidraw && npm install && cd excalidraw-app && npm run build:app:docker