diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index 3cc22e682..dee90cc71 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -2,6 +2,10 @@ name: Pull request
 
 on: pull_request
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
 env:
   ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION: true
   OLD_SIMULATION_GATEWAY_URL: ${{ vars.OLD_SIMULATION_GATEWAY_URL }}
diff --git a/changelog.d/3853.changed.md b/changelog.d/3853.changed.md
new file mode 100644
index 000000000..a19aa7c07
--- /dev/null
+++ b/changelog.d/3853.changed.md
@@ -0,0 +1 @@
+Pull request validation now cancels runs for superseded commits.