diff --git a/.github/workflows/continuous_integration.yml b/.github/workflows/continuous_integration.yml
index 9d51ff00..eded7994 100644
--- a/.github/workflows/continuous_integration.yml
+++ b/.github/workflows/continuous_integration.yml
@@ -8,6 +8,10 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ${{ (github.event_name == 'pull_request' && github.event.pull_request.number) || 'main' }}
+  cancel-in-progress: true
+
 jobs:
 
   lint: