diff --git a/.gitea/workflows/auto_join.yaml b/.gitea/workflows/auto_join.yaml
index 17357fe..a0aee01 100644
--- a/.gitea/workflows/auto_join.yaml
+++ b/.gitea/workflows/auto_join.yaml
@@ -9,6 +9,7 @@ jobs:
     env:
       ISSUE_AUTHOR: "${{ github.event.issue.user.login }}"
       ISSUE_BODY: "${{ github.event.issue.body }}"
+      API_URL: ${{ github.api_url }}
     steps:
       - name: Output GitHub Context
         id: output-context
@@ -41,7 +42,7 @@ jobs:
           curl -X PUT \
             -H "Authorization: token $TOKEN" \
             -H "Content-Type: application/json" \
-            "{$api_url}/teams/$TEAM_ID/members/$ISSUE_AUTHOR"
+            "$API_URL/teams/$TEAM_ID/members/$ISSUE_AUTHOR"
         
           echo "请求成功 ( $ISSUE_AUTHOR"
       
@@ -58,7 +59,7 @@ jobs:
           curl -s -X POST \
             -H "Authorization: token $GITHUB_TOKEN" \
             -H "Accept: application/json" \
-            {$api_url}/repos/${{ github.repository }}/issues/$ISSUE_NUMBER/comments \
+            $API_URL/repos/${{ github.repository }}/issues/$ISSUE_NUMBER/comments \
             -d "{\"body\": \"$COMMENT_BODY\"}"
 
       - name: Close issue
@@ -69,5 +70,5 @@ jobs:
           curl -s -X PATCH \
             -H "Authorization: token $GITHUB_TOKEN" \
             -H "Accept: application/json" \
-            {$api_url}/repos/${{ github.repository }}/issues/$ISSUE_NUMBER \
+            $API_URL/repos/${{ github.repository }}/issues/$ISSUE_NUMBER \
             -d '{"state": "closed"}'