diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 0acd11b..15000d9 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -15,7 +15,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v6
         with:
-          go-version: 1.24
+          go-version: 1.21
 
       - name: GO Env
         run: |
diff --git a/go.mod b/go.mod
index 3f6e0f1..31971c6 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/jefferyjob/go-easy-utils/v3
 
-go 1.24
+go 1.21
 
 require github.com/stretchr/testify v1.11.1