diff --git a/.github/workflows/close-invalid-bot.yaml b/.github/workflows/close-invalid-bot.yaml
new file mode 100644
index 00000000..6fb95966
--- /dev/null
+++ b/.github/workflows/close-invalid-bot.yaml
@@ -0,0 +1,33 @@
+# Close issues marked as invalid
+name: "Close issues marked as invalid"
+on:
+  schedule:
+    - cron: '0 */6 * * * *'
+jobs:
+  close_invalid:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/github-script@v3
+        with:
+          script: |
+            const issues = await github.issues.listForRepo({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              state: 'open',
+              labels: 'invalid',
+              per_page: 100,
+              page: 1
+            });
+            const expireMillis = 1000 * 60 * 60 * 36;
+            const curtime = new Date().getTime();
+            for (var issue of issues.data.values()) {
+              const updatetime = new Date(issue.updated_at).getTime();
+              if (curtime < updatetime + expireMillis)
+                continue;
+              await github.issues.update({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: issue.number,
+                state: 'closed'
+              });
+            }
diff --git a/.github/workflows/stale-issue-bot.yaml b/.github/workflows/stale-issue-bot.yaml
index 7a6421d0..96b5d3d0 100644
--- a/.github/workflows/stale-issue-bot.yaml
+++ b/.github/workflows/stale-issue-bot.yaml
@@ -29,14 +29,3 @@ jobs:
         exempt-issue-labels: 'enhancement,bug'
         days-before-stale: 35
         days-before-close: 7
-  invalid:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/stale@v3
-      with:
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
-        stale-issue-label: invalid
-        stale-pr-label: invalid
-        days-before-stale: -1
-        days-before-close: 2
-        remove-stale-when-updated: false