diff --git a/.gitea/workflows/develop_3.1_MS_build_manual.yaml b/.gitea/workflows/develop_3.1_MS_build_manual.yaml
index ba169ffc..d5a594be 100644
--- a/.gitea/workflows/develop_3.1_MS_build_manual.yaml
+++ b/.gitea/workflows/develop_3.1_MS_build_manual.yaml
@@ -27,11 +27,6 @@ jobs:
         with:
           ref: dev/3.1_release_merge_MS
 
-      - name: 2.Set up JDK 21
-        uses: actions/setup-java@v5
-        with:
-          java-version: '21'
-          distribution: 'temurin'
 
       - name: 3.缓存 Maven 依赖
         uses: actions/cache@v5