diff --git a/.github/workflows/on-pr.yaml b/.github/workflows/on-pr.yaml
index 01787a99..55b5a4be 100644
--- a/.github/workflows/on-pr.yaml
+++ b/.github/workflows/on-pr.yaml
@@ -6,6 +6,17 @@ on:
 permissions:
   contents: read
 
+# Cancel stale runs so only the PR's current HEAD determines the
+# check status. Matters specifically for PRs where the
+# upstream-release-docs workflow pushes multiple commits
+# in quick succession (skill output + prettier/eslint autofix): the
+# intermediate commits briefly fail lint until the autofix lands,
+# and without cancel-in-progress those intermediate failures stay
+# in the check history.
+concurrency:
+  group: on-pr-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
 jobs:
   static-checks:
     name: Static checks