diff --git a/default.xml b/default.xml
index ba17a3d..0810ebf 100644
--- a/default.xml
+++ b/default.xml
@@ -7,8 +7,8 @@
   <default revision="main" remote="origin" />
 
   <!-- project 元素定义每个 Git 仓库 -->
-  <project path="RepoProject1" name="RepoDemo/RepoProject1" />
-  <project path="RepoProject2" name="RepoDemo/RepoProject2" />
+  <project path="RepoProject1" name="RepoDemo/RepoProject1" revision="main" />
+  <project path="RepoProject2" name="RepoDemo/RepoProject2" revision="main" />
 
   <!-- 可以添加更多的 project 元素 -->
 </manifest>
\ No newline at end of file