diff --git a/.github/workflows/tests_primary.yml b/.github/workflows/tests_primary.yml
index b18b7716bd..845cde34e1 100644
--- a/.github/workflows/tests_primary.yml
+++ b/.github/workflows/tests_primary.yml
@@ -13,6 +13,12 @@ on:
       - main
       - release-*
 
+concurrency:
+  # For pull requests, cancel all currently-running jobs for this workflow
+  # https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#concurrency
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 env:
   # Force terminal colors. @see https://www.npmjs.com/package/colors
   FORCE_COLOR: 1