diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 137beed59..3838a044e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -56,6 +56,9 @@ jobs:
           yarn dedupe --check
       - name: Install npm dependencies
         uses: ./.github/actions/yarn
+      - name: Lint lockfile
+        run: |
+          yarn lint-lockfile
       - name: Validate generated files
         if: ${{ github.event_name == 'pull_request' }}
         env:
diff --git a/package.json b/package.json
index ee6ce2fd0..6c7b87280 100644
--- a/package.json
+++ b/package.json
@@ -128,6 +128,7 @@
     "@react-native-community/cli": "^15.0.1",
     "@react-native-community/template": "^0.78.0",
     "@rnx-kit/eslint-plugin": "^0.8.0",
+    "@rnx-kit/lint-lockfile": "^0.1.0",
     "@rnx-kit/tsconfig": "^2.0.0",
     "@swc-node/register": "^1.10.0",
     "@swc/core": "^1.11.0",
@@ -208,5 +209,17 @@
     "visionos": "@callstack/react-native-visionos",
     "windows": "react-native-windows"
   },
-  "prettier": "./.github/prettierrc.json"
+  "prettier": "./.github/prettierrc.json",
+  "rnx-kit": {
+    "lint": {
+      "lockfile": {
+        "noDuplicates": {
+          "packages": [
+            "#react-native",
+            "@babel/core"
+          ]
+        }
+      }
+    }
+  }
 }
diff --git a/yarn.lock b/yarn.lock
index 08eeb975d..438ded3bc 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3676,16 +3676,16 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@rnx-kit/config@npm:^0.7.0":
-  version: 0.7.3
-  resolution: "@rnx-kit/config@npm:0.7.3"
+"@rnx-kit/config@npm:^0.7.0, @rnx-kit/config@npm:^0.7.4":
+  version: 0.7.4
+  resolution: "@rnx-kit/config@npm:0.7.4"
   dependencies:
     "@rnx-kit/console": "npm:^2.0.0"
     "@rnx-kit/tools-node": "npm:^3.0.0"
     "@rnx-kit/tools-packages": "npm:^0.1.0"
     lodash.merge: "npm:^4.6.2"
     semver: "npm:^7.0.0"
-  checksum: 10c0/0c29594647714c7467f1263ed48b371fd53ceefd6fef8231deb9f7cd08f6113d84e1b25747a89acf5d936a0d6bd420eabbc8afc890c9ccbb5fd823cb198a9812
+  checksum: 10c0/f237eacf8082eb5068d88a4b8302c115014edc0131475e756e52052426421f0799caa82208e7691b2e1673b859422bd9f5f8a9a192841f0e19c16ab7de090dd5
   languageName: node
   linkType: hard
 
@@ -3711,6 +3711,19 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@rnx-kit/lint-lockfile@npm:^0.1.0":
+  version: 0.1.0
+  resolution: "@rnx-kit/lint-lockfile@npm:0.1.0"
+  dependencies:
+    "@rnx-kit/config": "npm:^0.7.4"
+    "@rnx-kit/tools-workspaces": "npm:^0.2.3"
+    js-yaml: "npm:^4.1.0"
+  bin:
+    lint-lockfile: lib/cli.js
+  checksum: 10c0/534491cdf8c058a63862fd5e38209eee5a5ed8fe725a5e6d085076ed1b8a1b4f8ed08578b9174044c53f1ddebb197624d0b767c744b7565f36b6d3cfb13b0668
+  languageName: node
+  linkType: hard
+
 "@rnx-kit/metro-config@npm:^2.1.0":
   version: 2.1.0
   resolution: "@rnx-kit/metro-config@npm:2.1.0"
@@ -3912,16 +3925,16 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@rnx-kit/tools-workspaces@npm:^0.2.0, @rnx-kit/tools-workspaces@npm:^0.2.1":
-  version: 0.2.2
-  resolution: "@rnx-kit/tools-workspaces@npm:0.2.2"
+"@rnx-kit/tools-workspaces@npm:^0.2.0, @rnx-kit/tools-workspaces@npm:^0.2.1, @rnx-kit/tools-workspaces@npm:^0.2.3":
+  version: 0.2.3
+  resolution: "@rnx-kit/tools-workspaces@npm:0.2.3"
   dependencies:
     fast-glob: "npm:^3.2.7"
     find-up: "npm:^5.0.0"
     micromatch: "npm:^4.0.0"
     read-yaml-file: "npm:^2.1.0"
     strip-json-comments: "npm:^3.1.1"
-  checksum: 10c0/3a0f258d8be28818c7b6c7b5c490c7aa20a1181e7499b1ccce23e3043f41a767e9f1a5eefe5f696de11eaf3ad84777587059c78169694e85aeda9f97882e5ae6
+  checksum: 10c0/b9528f560092c8ba8eeafb818cef2363ba99ffd7b3f0e3738cfe0316b35211ab7b6aa08d9eb3ef555c02b6048c591adafdca2934e674066256c06860cb1cf668
   languageName: node
   linkType: hard
 
@@ -12128,6 +12141,7 @@ __metadata:
     "@react-native-community/cli": "npm:^15.0.1"
     "@react-native-community/template": "npm:^0.78.0"
     "@rnx-kit/eslint-plugin": "npm:^0.8.0"
+    "@rnx-kit/lint-lockfile": "npm:^0.1.0"
     "@rnx-kit/react-native-host": "npm:^0.5.9"
     "@rnx-kit/tools-react-native": "npm:^2.1.0"
     "@rnx-kit/tsconfig": "npm:^2.0.0"