diff --git a/environment.yml b/environment.yml
index 091a4347..4dc0a12f 100644
--- a/environment.yml
+++ b/environment.yml
@@ -14,5 +14,6 @@ dependencies:
       - pydata-sphinx-theme
       - astroplan
       - mock
+      - setuptools
       - sphinx
       - sphinxcontrib.napoleon