diff --git a/.github/workflows/autolabeller.yml b/.github/workflows/autolabeller.yml
index 6573d8b..0c88d64 100644
--- a/.github/workflows/autolabeller.yml
+++ b/.github/workflows/autolabeller.yml
@@ -10,6 +10,10 @@ on:
       - ready_for_review
       - edited
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref == 'refs/heads/main' && github.run_id || github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   validate:
     name: Validate PR title
@@ -42,6 +46,8 @@ jobs:
           requireScope: false
           # Ensures the subject start with an uppercase character.
           subjectPattern: ^([A-Z]).+$
+          headerPattern: '^\s*.*?\s(\w*)(?:\(([\w$.\-*/ ]*)\))?: (.*)$'
+          headerPatternCorrespondence: type, scope, subject
           subjectPatternError: |
             The subject "{subject}" found in the pull request title "{title}"
             didn't match the configured pattern. Please ensure that the subject