diff --git a/.github/workflows/reassurePerfTests.yml b/.github/workflows/reassurePerfTests.yml
index ce96e0c4e..20d160d99 100644
--- a/.github/workflows/reassurePerfTests.yml
+++ b/.github/workflows/reassurePerfTests.yml
@@ -43,7 +43,13 @@ jobs:
         run: |
           git fetch origin ${{ github.event.pull_request.head.sha }} --no-tags --depth=1
           git switch --force --detach ${{ github.event.pull_request.head.sha }}
-          
+
+      # v4 — re-run setup so Node/npm match the PR's .nvmrc, which may differ from the base branch
+      - name: Setup Node for PR head
+        uses: actions/setup-node@cdca7365b2dadb8aad0a33bc7601856ffabcc48e
+        with:
+          node-version-file: '.nvmrc'
+
       - name: Reinstall dependencies
         run: npm ci
 
diff --git a/.gitignore b/.gitignore
index a46d06d84..3f223cbf2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,9 +6,6 @@ node_modules/
 npm-debug.log
 dist/
 
-# NPM file created by GitHub actions
-.npmrc
-
 # IDEs
 .idea
 
diff --git a/.npmrc b/.npmrc
new file mode 100644
index 000000000..b6f27f135
--- /dev/null
+++ b/.npmrc
@@ -0,0 +1 @@
+engine-strict=true
diff --git a/.nvmrc b/.nvmrc
index 0a492611a..60ade1ae0 100644
--- a/.nvmrc
+++ b/.nvmrc
@@ -1 +1 @@
-24.11.0
+24.19.0
diff --git a/package.json b/package.json
index f3585d144..8003dd9a5 100644
--- a/package.json
+++ b/package.json
@@ -128,5 +128,12 @@
     "node": ">=20.19.5",
     "npm": ">=10.8.2"
   },
-  "sideEffects": false
+  "sideEffects": false,
+  "devEngines": {
+    "packageManager": {
+      "name": "npm",
+      "version": ">=11.10.0",
+      "onFail": "error"
+    }
+  }
 }