diff --git a/.github/labeler.yml b/.github/labeler.yml
new file mode 100644
index 000000000..46d20af9c
--- /dev/null
+++ b/.github/labeler.yml
@@ -0,0 +1,2 @@
+"v4.x":
+  - base-branch: "main"
diff --git a/.github/workflows/label-pr.yml b/.github/workflows/label-pr.yml
new file mode 100644
index 000000000..5c2b2fa17
--- /dev/null
+++ b/.github/workflows/label-pr.yml
@@ -0,0 +1,16 @@
+name: Label PRs
+on:
+  pull_request_target:
+    branches: [main]
+    types: [opened, reopened, edited, synchronize]
+permissions: {}
+jobs:
+  label:
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/labeler@b8dd2d9be0f68b860e7dae5dae7d772984eacd6d # pin@v6.2.0
+        with:
+          sync-labels: true