diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 29b60ea17..ff9785bd8 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -12,7 +12,7 @@ jobs:
             - name: Setup Node.js environment
               uses: actions/setup-node@v4.0.2
               with:
-                  node-version: ">=20.6.0"
+                  node-version: ">=20.18.1"
             - run: npm ci
             - run: cp config-vanilla.json config.json
             - run: npm run verify
diff --git a/package.json b/package.json
index 0e55719cb..02946d3bb 100644
--- a/package.json
+++ b/package.json
@@ -57,5 +57,8 @@
     "eslint-plugin-prettier": "^5.2.5",
     "prettier": "^3.5.3",
     "tree-kill": "^1.2.2"
+  },
+  "engines": {
+    "node": ">=20.18.1"
   }
 }