diff --git a/setup.py b/setup.py
index 90c2231..80576a9 100644
--- a/setup.py
+++ b/setup.py
@@ -49,6 +49,11 @@
                 'gunicorn==20.1.0',
                 'werkzeug==2.0.0',
             ],
+          'buildtest27_library': [
+                'hatchling==0.25.1',  # includes 2.7 support, but not 3.6 :/ CI will fail for 3.6
+                'pytest==4.6.11',
+                'pytest-cov==2.12.1',
+            ],
         },
         entry_points={
             'console_scripts': [