diff --git a/setup.cfg b/setup.cfg
index 2d735ef4..e02c803e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -22,6 +22,7 @@ keywords = CSS, Cascading Style Sheets, CSSParser, DOM Level 2 Stylesheets, DOM
 packages = find_namespace:
 include_package_data = true
 python_requires = >=3.8
+install_requires =
 
 [options.packages.find]
 exclude =