diff --git a/calc/jest.config.js b/calc/jest.config.js
index 1e8bdcad4..1777253c7 100644
--- a/calc/jest.config.js
+++ b/calc/jest.config.js
@@ -4,10 +4,8 @@ module.exports = {
   coverageDirectory: 'coverage',
   testPathIgnorePatterns: ['<rootDir>/node_modules/', '<rootDir>/dist/'],
   coveragePathIgnorePatterns: ['<rootDir>/node_modules/', '<rootDir>/dist/' ],
-  globals: {
-    'ts-jest': {
-      packageJson: 'package.json',
-    },
+  transform: {
+    '^.+\\.test\\.ts$': 'ts-jest',
   },
 };