diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index bed7fa1..3aa5f28 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -15,6 +15,8 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - uses: pnpm/action-setup@v4
+
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
diff --git a/package.json b/package.json
index e62ad33..2cd75a1 100644
--- a/package.json
+++ b/package.json
@@ -32,6 +32,10 @@
     "prepare:package": "pnpm clean; pnpm compile; pnpm build; ts-node scripts/build-publish.ts",
     "publish:package": "pnpm prepare:package; cd publish && npm publish"
   },
+  "engines": {
+    "node": "20",
+    "pnpm": "9"
+  },
   "dependencies": {
     "@ensdomains/ens-contracts": "1.2.2",
     "@openzeppelin/contracts": "5.1.0",