diff --git a/conda_package/dev-spec.txt b/conda_package/dev-spec.txt
index 1c6fca51..4367f8c4 100644
--- a/conda_package/dev-spec.txt
+++ b/conda_package/dev-spec.txt
@@ -28,6 +28,7 @@ xarray
 # Development
 pip
 pytest
+setuptools
 
 # Documentation
 sphinx