diff --git a/.github/workflows/pr-label.yml b/.github/workflows/pr-label.yml
index 9e477450bac..88c7874635e 100644
--- a/.github/workflows/pr-label.yml
+++ b/.github/workflows/pr-label.yml
@@ -3,7 +3,7 @@ name: label
 
 jobs:
   label:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - name: get label length
         id: getlength
@@ -11,7 +11,7 @@ jobs:
           labels: ${{ toJson(github.event.pull_request.labels) }}
         run: |
           echo "$labels"
-          LL=$(echo $labels | jq '. | length' )
+          LL=$(echo "$labels" | jq '. | length' )
           echo "Label_length=$LL" >> $GITHUB_OUTPUT
       - name: re-review
         id: re-review