diff --git a/calc/jest.config.js b/calc/jest.config.js
index 82c607b97..1777253c7 100644
--- a/calc/jest.config.js
+++ b/calc/jest.config.js
@@ -5,11 +5,7 @@ module.exports = {
   testPathIgnorePatterns: ['<rootDir>/node_modules/', '<rootDir>/dist/'],
   coveragePathIgnorePatterns: ['<rootDir>/node_modules/', '<rootDir>/dist/' ],
   transform: {
-    '^.+\\.test\\.ts$': [
-      'ts-jest', {
-        packageJson: 'package.json',
-      }
-    ],
+    '^.+\\.test\\.ts$': 'ts-jest',
   },
 };