diff --git a/.github/workflows/npmPublish.yml b/.github/workflows/npmPublish.yml
index f6a35c0..a4d4c44 100644
--- a/.github/workflows/npmPublish.yml
+++ b/.github/workflows/npmPublish.yml
@@ -11,7 +11,7 @@ jobs:
       - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
       - uses: actions/setup-node@v4
         with:
-          node-version: 16
+          node-version: 20
           registry-url: https://registry.npmjs.org/
       - run: yarn install
       - run: npm publish --access public
diff --git a/jest.config.ts b/jest.config.ts
index 27285af..a7df7d6 100644
--- a/jest.config.ts
+++ b/jest.config.ts
@@ -3,8 +3,8 @@
  * https://jestjs.io/docs/configuration
  */
 
-const { pathsToModuleNameMapper } = require('ts-jest');
-const tsConfigFile = require('./tsconfig');
+import { pathsToModuleNameMapper } from 'ts-jest';
+import tsConfigFile from './tsconfig.json';
 
 export default {
   // All imported modules in your tests should be mocked automatically
diff --git a/src/JSONUtils.ts b/src/JSONUtils.ts
index c185957..d2d693d 100644
--- a/src/JSONUtils.ts
+++ b/src/JSONUtils.ts
@@ -1,7 +1,7 @@
+import * as fs from 'fs';
+
 export class JSONUtils {
   static readFile<T>(filePath: string): T {
-    const fs = require('fs');
-
     const raw = fs.readFileSync(filePath, 'utf8');
     return JSON.parse(raw);
   }