diff --git a/python-modules/cis_postgresql/setup.py b/python-modules/cis_postgresql/setup.py
index b1398e34..da714eed 100644
--- a/python-modules/cis_postgresql/setup.py
+++ b/python-modules/cis_postgresql/setup.py
@@ -10,7 +10,7 @@
 
 setup_requirements = ["pytest-runner", "setuptools>=40.5.0"]
 
-test_requirements = ["pytest", "pytest-watch", "pytest-cov", "patch", "mock", "flake8", "moto"]
+test_requirements = ["pytest", "pytest-watch", "pytest-cov", "patch", "mock", "flake8", "moto", "docker"]
 
 extras = {"test": test_requirements}