diff --git a/.github/workflows/check_code_formatting.yml b/.github/workflows/check_code_formatting.yml
index 60f46606b..20f624122 100644
--- a/.github/workflows/check_code_formatting.yml
+++ b/.github/workflows/check_code_formatting.yml
@@ -14,9 +14,9 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Setup Node.js
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v4
         with:
-          node-version: '20.x'
+          node-version-file: '.node-version'
 
       - name: Install dependencies
         run: npm install
diff --git a/.github/workflows/npm_publish.yml b/.github/workflows/npm_publish.yml
index 2934f7513..7e26c641e 100644
--- a/.github/workflows/npm_publish.yml
+++ b/.github/workflows/npm_publish.yml
@@ -9,9 +9,9 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Setup Node
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
-          node-version: '20.x'
+          node-version-file: '.node-version'
           registry-url: 'https://registry.npmjs.org'
       - name: Install dependencies
         run: npm ci
diff --git a/.node-version b/.node-version
new file mode 100644
index 000000000..ccc4c6c7f
--- /dev/null
+++ b/.node-version
@@ -0,0 +1 @@
+20.20.2
diff --git a/docs/installation-deployments.md b/docs/installation-deployments.md
index 8a4b8b051..58234b00e 100644
--- a/docs/installation-deployments.md
+++ b/docs/installation-deployments.md
@@ -48,6 +48,8 @@ $ bunx @portkey-ai/gateway
 
 ### NodeJS Server
 
+> **Node.js version:** this project targets Node.js `>=20.9.0` (see `.node-version` and the `engines` field in `package.json`). If you use a version manager like `nvm`, `fnm`, `asdf`, `mise`, or `nodenv`, it will pick the pinned version up automatically.
+
 1. Clone the Repository
 
 ```sh
diff --git a/package.json b/package.json
index 30ba6551b..c9671dc63 100644
--- a/package.json
+++ b/package.json
@@ -78,5 +78,8 @@
     "wrangler": "^3.97.0"
   },
   "bin": "build/start-server.js",
-  "type": "module"
+  "type": "module",
+  "engines": {
+    "node": ">=20.9.0"
+  }
 }