diff --git a/.github/workflows/pr-label-check.yml b/.github/workflows/pr-label-check.yml
index bcf245887..380e98ba9 100644
--- a/.github/workflows/pr-label-check.yml
+++ b/.github/workflows/pr-label-check.yml
@@ -3,7 +3,7 @@ on:
   pull_request:
     types:
       - opened # for "Require status checks to pass"
-      - synchronize # ditto
+      #- synchronize # ditto
       - labeled
       - unlabeled
 
@@ -16,11 +16,8 @@ permissions:
 
 jobs:
   do-not-merge:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
     steps:
-      - run: |
-          if ${{ contains(github.event.pull_request.labels.*.name, 'do NOT merge!!!') }}; then
-            false
-          else
-            true
-          fi
+      - if: contains(github.event.pull_request.labels.*.name, 'do NOT merge!!!')
+        name: "Remove `do-not-merge` label before merging"
+        run: exit 1