diff --git a/setup.cfg b/setup.cfg
index 995ada5..eecf980 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -27,6 +27,7 @@ install_requires =
                  pandas>=2.0.0,<3.0.0
                  plotly>=5.21.0,<6.0.0
                  redis>=5.0.0,<6.0.0
+                 ckanext-scheming
 
 include_package_data = True