diff --git a/header-gen/jest.config.js b/header-gen/jest.config.js
deleted file mode 100644
index 1c8de09..0000000
--- a/header-gen/jest.config.js
+++ /dev/null
@@ -1,5 +0,0 @@
-module.exports = {
-    preset: 'ts-jest',
-    testEnvironment: 'node',
-    testMatch: ['**/?(*.)+(spec|test).[tj]s?(x)']
-};
diff --git a/header-gen/jest.config.json b/header-gen/jest.config.json
new file mode 100644
index 0000000..e2273a3
--- /dev/null
+++ b/header-gen/jest.config.json
@@ -0,0 +1,5 @@
+{
+  "preset": "ts-jest",
+  "testEnvironment": "node",
+  "testMatch": ["**/?(*.)+(spec|test).[tj]s?(x)"]
+}