diff --git a/.jest.config.js b/.jest.config.js
new file mode 100644
index 0000000..f7b39ab
--- /dev/null
+++ b/.jest.config.js
@@ -0,0 +1,19 @@
+module.exports = {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+  roots: ['<rootDir>/tests'],
+  testMatch: ['**/*.test.ts'],
+  moduleFileExtensions: ['ts', 'js', 'json'],
+  collectCoverageFrom: [
+    'src/**/*.ts',
+    '!src/index.ts'
+  ],
+  coverageDirectory: 'coverage',
+  verbose: true,
+  transformIgnorePatterns: [
+    'node_modules/(?!(execa|strip-final-newline)/)'
+  ],
+  moduleNameMapper: {
+    '^execa$': '<rootDir>/tests/__mocks__/execa.js'
+  }
+};