diff --git a/packages/cli/jest.config.ts b/packages/cli/jest.config.ts
index f3ba355b8..c3f953f6f 100644
--- a/packages/cli/jest.config.ts
+++ b/packages/cli/jest.config.ts
@@ -1,7 +1,11 @@
-import { merge, Config } from '@silverhand/jest-config';
+import type { Config } from '@silverhand/jest-config';
+import { merge } from '@silverhand/jest-config';
 
 const config: Config.InitialOptions = merge({
   roots: ['./src'],
+  moduleNameMapper: {
+    '^(\\.{1,2}/.*)\\.js$': '$1',
+  },
 });
 
 export default config;
diff --git a/packages/core/jest.config.ts b/packages/core/jest.config.ts
index 9de583529..64ca0ec7b 100644
--- a/packages/core/jest.config.ts
+++ b/packages/core/jest.config.ts
@@ -2,19 +2,12 @@ import type { Config } from '@silverhand/jest-config';
 import { merge } from '@silverhand/jest-config';
 
 const config: Config.InitialOptions = merge({
-  preset: 'ts-jest/presets/js-with-ts-esm',
   testPathIgnorePatterns: ['/core/connectors/'],
   setupFilesAfterEnv: ['jest-matcher-specific-error', './jest.setup.ts'],
   moduleNameMapper: {
     '^#src/(.*)\\.js(x)?$': '<rootDir>/src/$1',
     '^(\\.{1,2}/.*)\\.js$': '$1',
   },
-  globals: {
-    'ts-jest': {
-      useESM: true,
-    },
-  },
-  extensionsToTreatAsEsm: ['.ts', '.tsx'],
 });
 
 export default config;
diff --git a/packages/demo-app/package.json b/packages/demo-app/package.json
index 055684270..69d6298b4 100644
--- a/packages/demo-app/package.json
+++ b/packages/demo-app/package.json
@@ -6,7 +6,6 @@
   "license": "MPL-2.0",
   "private": true,
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
     "precommit": "lint-staged",
     "start": "parcel src/index.html",
     "dev": "cross-env PORT=5003 parcel src/index.html --public-url /demo-app --no-cache --hmr-port 6003",
diff --git a/packages/schemas/jest.config.ts b/packages/schemas/jest.config.ts
index 0a9aa1b2e..225bc6319 100644
--- a/packages/schemas/jest.config.ts
+++ b/packages/schemas/jest.config.ts
@@ -1 +1,10 @@
-export { default } from '@silverhand/jest-config';
+import type { Config } from '@silverhand/jest-config';
+import { merge } from '@silverhand/jest-config';
+
+const config: Config.InitialOptions = merge({
+  moduleNameMapper: {
+    '^(\\.{1,2}/.*)\\.js$': '$1',
+  },
+});
+
+export default config;
diff --git a/packages/shared/jest.config.ts b/packages/shared/jest.config.ts
index f3ba355b8..c3f953f6f 100644
--- a/packages/shared/jest.config.ts
+++ b/packages/shared/jest.config.ts
@@ -1,7 +1,11 @@
-import { merge, Config } from '@silverhand/jest-config';
+import type { Config } from '@silverhand/jest-config';
+import { merge } from '@silverhand/jest-config';
 
 const config: Config.InitialOptions = merge({
   roots: ['./src'],
+  moduleNameMapper: {
+    '^(\\.{1,2}/.*)\\.js$': '$1',
+  },
 });
 
 export default config;