diff --git a/backend/requirements-dev.txt b/backend/requirements-dev.txt
index 7a994f9..9019ef8 100644
--- a/backend/requirements-dev.txt
+++ b/backend/requirements-dev.txt
@@ -1,6 +1,7 @@
 pytest
+pytest_mock
 pytest-cov # For checking test coverage (optional)
 ruff # Or flake8, pylint etc. for linting
 black # For code formatting checks
 testcontainers
-faker
\ No newline at end of file
+faker