diff --git a/apps/extension/jest.config.js b/apps/extension/jest.config.js
index e3f5340d67..c957b49843 100644
--- a/apps/extension/jest.config.js
+++ b/apps/extension/jest.config.js
@@ -11,9 +11,12 @@ module.exports = {
   transform: {
     "^.+\\.(t|j)sx?$": ["@swc/jest"],
   },
-  moduleNameMapper: pathsToModuleNameMapper(compilerOptions.paths, {
-    prefix: "<rootDir>/src",
-  }),
+  moduleNameMapper: {
+    "^rxjs/internal/(.*)$": "rxjs/dist/cjs/internal/$1",
+    ...pathsToModuleNameMapper(compilerOptions.paths, {
+      prefix: "<rootDir>/src",
+    })
+  },
   extraGlobals: ["Math"],
   moduleFileExtensions: [...defaults.moduleFileExtensions, "ts", "tsx"],
   setupFiles: [