diff --git a/core/jest.config.cjs b/core/jest.config.cjs
index 657386fc..3ce2b6e2 100644
--- a/core/jest.config.cjs
+++ b/core/jest.config.cjs
@@ -2,4 +2,7 @@
 module.exports = {
     preset: 'ts-jest',
     testEnvironment: 'node',
+    moduleNameMapper: {
+        '^(\\./.+|\\../.+).js$': '$1',
+    },
 };