diff --git a/package-lock.json b/package-lock.json
index e0fbb4e..703ad41 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -48,7 +48,7 @@
         "typescript": "^5.3.3"
       },
       "engines": {
-        "node": "20"
+        "node": "^20.6.0"
       }
     },
     "node_modules/@aashutoshrathi/word-wrap": {
diff --git a/package.json b/package.json
index 0444099..df2ebb2 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "lint:css": "stylelint ./src/**/*.css",
     "lint": "npm run lint:js && npm run lint:css",
     "format": "prettier --write 'src/**/*.{ts,tsx,css}'",
-    "jest": "jest --coverage -c tests/jest.config.ts",
+    "jest": "jest --coverage -c tests/jest.config.js",
     "test": "NODE_ENV=test npm run prebuild && npm run lint && npm run typecheck && npm run jest",
     "new": "node --import tsx/esm ./scripts/new.ts",
     "favicon": "node --import tsx/esm ./scripts/favicon.ts",
diff --git a/tests/jest.config.ts b/tests/jest.config.js
similarity index 73%
rename from tests/jest.config.ts
rename to tests/jest.config.js
index 21078db..b8a2604 100644
--- a/tests/jest.config.ts
+++ b/tests/jest.config.js
@@ -1,17 +1,13 @@
-import nextJest from 'next/jest'
-import type { Config } from 'jest'
+import nextJest from 'next/jest.js'
 
 const createJestConfig = nextJest({
-  // Provide the path to your Next.js app to load next.config.js and .env files in your test environment
   dir: './'
 })
 
-// Add any custom config to be passed to Jest
-const customJestConfig: Config = {
-  rootDir: '../', // = /
-  // Add more setup options before each test is run
+/** @type {import('jest').Config} */
+const customJestConfig = {
+  rootDir: '../',
   setupFilesAfterEnv: ['<rootDir>/tests/jest.setup.tsx'],
-  // if using TypeScript with a baseUrl set to the root directory then you need the below for alias' to work
   moduleDirectories: ['node_modules', '<rootDir>/src'],
   testEnvironment: 'jsdom',
   moduleNameMapper: {