diff --git a/tracker/tracker/jest.config.js b/tracker/tracker/jest.config.js
index ac058f12c..93fae253a 100644
--- a/tracker/tracker/jest.config.js
+++ b/tracker/tracker/jest.config.js
@@ -1,5 +1,11 @@
-/** @type {import('ts-jest').JestConfigWithTsJest} */
-export default {
+/** @type {import('ts-jest/dist/types').InitialOptionsTsJest} */
+const config = {
   preset: 'ts-jest',
   testEnvironment: 'jsdom',
+  // .js file extension fix
+  moduleNameMapper: {
+    '(.+)\\.js': '$1',
+  },
 }
+
+export default config