diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
index 4a61320efc3ea..b55748275339a 100644
--- a/.github/workflows/stale.yml
+++ b/.github/workflows/stale.yml
@@ -81,7 +81,7 @@ jobs:
           stale-pr-label: " "
 
       - name: Print outputs for issues
-        run: echo ${{ join(steps.stale-issues.outputs.*, ',') }}
+        run: echo ${{ format('{0},{1}', toJSON(steps.stale-issues.outputs.staled-issues-prs), toJSON(steps.stale-issues.outputs.closed-issues-prs)) }}
 
       - name: Stale Pull Requests
         uses: actions/stale@v7
@@ -120,7 +120,7 @@ jobs:
           stale-issue-label: " "
 
       - name: Print outputs for PRs
-        run: echo ${{ join(steps.stale-prs.outputs.*, ',') }}
+        run: echo ${{ format('{0},{1}', toJSON(steps.stale-prs.outputs.staled-issues-prs), toJSON(steps.stale-prs.outputs.closed-issues-prs)) }}
 
       ## Removing private properties from each JSON object and compute array length
       ## TODO: Delete these set-* workarounds when resolve actions/stale#806 ?