diff --git a/libs/core/__mocks__/p-queue.ts b/__mocks__/p-queue.ts
similarity index 100%
rename from libs/core/__mocks__/p-queue.ts
rename to __mocks__/p-queue.ts
diff --git a/jest.preset.js b/jest.preset.js
index 5add69934..983cc58c6 100644
--- a/jest.preset.js
+++ b/jest.preset.js
@@ -11,5 +11,7 @@ module.exports = {
     ...nxPreset.moduleNameMapper,
     "App/(.*)": `${__dirname}/apps/mudita-center/src/$1`,
     "Core/(.*)": `${__dirname}/libs/core/$1`,
+    "p-queue$": `${__dirname}/__mocks__/p-queue.ts`,
   },
+  setupFilesAfterEnv: [`${__dirname}/jest.setup.js`],
 }
diff --git a/jest.setup.js b/jest.setup.js
new file mode 100644
index 000000000..25b5da26e
--- /dev/null
+++ b/jest.setup.js
@@ -0,0 +1,6 @@
+/**
+ * Copyright (c) Mudita sp. z o.o. All rights reserved.
+ * For licensing, see https://github.com/mudita/mudita-center/blob/master/LICENSE.md
+ */
+
+require("reflect-metadata")
diff --git a/jest/jest.config.core.js b/jest/jest.config.core.js
index a7527932b..155b2144c 100644
--- a/jest/jest.config.core.js
+++ b/jest/jest.config.core.js
@@ -19,6 +19,7 @@ module.exports = {
     "Core/(.*)": "<rootDir>/libs/core/$1",
     "Cypress/(.*)": "<rootDir>/apps/mudita-center/cypress/$1",
     "Storybook/(.*)": "<rootDir>/apps/mudita-center/.storybook/$1",
+    "p-queue$": `${__dirname}/__mocks__/p-queue.ts`,
   },
   rootDir: "../",
   moduleFileExtensions: ["ts", "tsx", "js", "jsx", "json", "node"],