diff --git a/.gitea/workflows/build_tool.yaml b/.gitea/workflows/build_tool.yaml
index f51305a..6fe968a 100644
--- a/.gitea/workflows/build_tool.yaml
+++ b/.gitea/workflows/build_tool.yaml
@@ -33,6 +33,7 @@ jobs:
           path: |
             ~/go/pkg/mod
             ~/.cache/go-build
+          key: ${{ runner.os }}-go
 
       - name: 构建上传工具
         run: |