diff --git a/setup.py b/setup.py
index 6a9556f..f2cb1b4 100755
--- a/setup.py
+++ b/setup.py
@@ -43,6 +43,7 @@
     'sphinx-themes': [
         'sphinx>=4.5.0,<7.3.0',
         'sphinx_rtd_theme>=1.0.0',
+        'setuptools',
     ],
 }