diff --git a/.ng-dev/merge.ts b/.ng-dev/merge.ts
index cb508bd3b1..79e4f3039a 100644
--- a/.ng-dev/merge.ts
+++ b/.ng-dev/merge.ts
@@ -1,38 +1,25 @@
-import {MergeConfig} from '../dev-infra/pr/merge/config';
+import {DevInfraMergeConfig} from '../dev-infra/pr/merge/config';
+import {getDefaultTargetLabelConfiguration} from '../dev-infra/pr/merge/defaults';
+import {github} from './github';
 
 /**
  * Configuration for the merge tool in `ng-dev`. This sets up the labels which
  * are respected by the merge script (e.g. the target labels).
  */
-export const merge = (): MergeConfig => {
-  // TODO: resume dynamically determining patch branch
-  const patch = '10.0.x';
+export const merge: DevInfraMergeConfig['merge'] = async api => {
   return {
     githubApiMerge: false,
     claSignedLabel: 'cla: yes',
     mergeReadyLabel: /^PR action: merge(-assistance)?/,
     caretakerNoteLabel: 'PR action: merge-assistance',
     commitMessageFixupLabel: 'commit message fixup',
-    labels: [
-      {
-        pattern: 'PR target: master-only',
-        branches: ['master'],
-      },
-      {
-        pattern: 'PR target: patch-only',
-        branches: [patch],
-      },
-      {
-        pattern: 'PR target: master & patch',
-        branches: ['master', patch],
-      },
-    ],
+    labels: await getDefaultTargetLabelConfiguration(api, github, '@angular/core'),
     requiredBaseCommits: {
       // PRs that target either `master` or the patch branch, need to be rebased
       // on top of the latest commit message validation fix.
       // These SHAs are the commits that update the required license text in the header.
       'master': '5aeb9a4124922d8ac08eb73b8f322905a32b0b3a',
-      [patch]: '27b95ba64a5d99757f4042073fd1860e20e3ed24'
+      '10.0.x': '27b95ba64a5d99757f4042073fd1860e20e3ed24'
     },
   };
 };