diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2f5e3f6..4cdd9a3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,4 +1,9 @@
 name: Test collection
+
+concurrency:
+  group: ${{ github.head_ref }}
+  cancel-in-progress: true
+
 on:
   push:
     branches: [main]
diff --git a/changelogs/fragments/187.yaml b/changelogs/fragments/187.yaml
new file mode 100644
index 0000000..ed204be
--- /dev/null
+++ b/changelogs/fragments/187.yaml
@@ -0,0 +1,3 @@
+---
+trivial:
+  - Enable concurrency check for PRs & GHA