diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index b9859420..31b7d085 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -16,7 +16,7 @@ jobs:
       - name: Set up node
         uses: actions/setup-node@v2
         with:
-          node-version: 12
+          node-version: 14
 
       - name: Install dependencies
         run: yarn install --frozen-lockfile
diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
index 09f2ffa7..21fd2e07 100644
--- a/.github/workflows/unit-tests.yml
+++ b/.github/workflows/unit-tests.yml
@@ -13,7 +13,7 @@ jobs:
     name: Unit tests
     strategy:
       matrix:
-        node: ['10.x', '12.x', '14.x']
+        node: ['14.x', '16.x', '18.x']
 
     runs-on: ubuntu-latest
 
diff --git a/package.json b/package.json
index 52fcd46c..525b678a 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@uniswap/sdk-core",
   "license": "MIT",
-  "version": "4.0.7",
+  "version": "4.0.9",
   "description": "⚒️ An SDK for building applications on top of Uniswap V3",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
@@ -36,7 +36,7 @@
     "jest-environment-jsdom": "^29.5.0"
   },
   "engines": {
-    "node": ">=10"
+    "node": ">=14"
   },
   "prettier": {
     "printWidth": 120,
diff --git a/src/entities/weth9.ts b/src/entities/weth9.ts
index 560938e1..9558f922 100644
--- a/src/entities/weth9.ts
+++ b/src/entities/weth9.ts
@@ -14,5 +14,11 @@ export const WETH9: { [chainId: number]: Token } = {
   [69]: new Token(69, '0x4200000000000000000000000000000000000006', 18, 'WETH', 'Wrapped Ether'),
 
   [42161]: new Token(42161, '0x82aF49447D8a07e3bd95BD0d56f35241523fBab1', 18, 'WETH', 'Wrapped Ether'),
-  [421611]: new Token(421611, '0xB47e6A5f8b33b3F17603C83a0535A9dcD7E32681', 18, 'WETH', 'Wrapped Ether')
+  [421611]: new Token(421611, '0xB47e6A5f8b33b3F17603C83a0535A9dcD7E32681', 18, 'WETH', 'Wrapped Ether'),
+
+  [8453]: new Token(8453, '0x4200000000000000000000000000000000000006', 18, 'WETH', 'Wrapped Ether'),
+
+  [56]: new Token(56, '0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c', 18, 'WBNB', 'Wrapped BNB'),
+  [137]: new Token(137, '0x0d500B1d8E8eF31E21C99d1Db9A6444d3ADf1270', 18, 'WMATIC', 'Wrapped MATIC'),
+  [43114]: new Token(43114, '0xB31f66AA3C1e785363F0875A1B74E27b85FD66c7', 18, 'WAVAX', 'Wrapped AVAX')
 }