diff --git a/setup.cfg b/setup.cfg
index 71277bf..458e6b0 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -34,6 +34,7 @@ setup_requires = setuptools_scm
 install_requires =
     astropy
     matplotlib
+    pytest
 
 [options.entry_points]
 console_scripts =