diff --git a/backend/jest.setup.js b/backend/jest.setup.js
new file mode 100644
index 0000000..639c93a
--- /dev/null
+++ b/backend/jest.setup.js
@@ -0,0 +1,4 @@
+beforeAll(() => {
+  process.env.NODE_ENV = 'test';
+  process.env.JWT_SECRET = 'test-secret';
+});