diff --git a/modelskill/comparison/_collection.py b/modelskill/comparison/_collection.py
index e1bf6c7a0..b960b2673 100644
--- a/modelskill/comparison/_collection.py
+++ b/modelskill/comparison/_collection.py
@@ -715,7 +715,7 @@ def weighted_mean(x):
 
         # group by
         by = cmp._mean_skill_by(skilldf, mod_names, var_names)
-        agg = {"n": np.sum}
+        agg = {"n": "sum"}
         for metric in metrics:  # type: ignore
             agg[metric.__name__] = weighted_mean  # type: ignore
         res = skilldf.groupby(by).agg(agg)
diff --git a/pyproject.toml b/pyproject.toml
index e78c8c488..7a79d9bd4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -41,9 +41,6 @@ classifiers = [
     "Topic :: Scientific/Engineering",
 ]
 
-[project.scripts]
-modelskill = "modelskill.cli:report"
-
 [project.optional-dependencies]
 dev = ["pytest",
         "sphinx==4.5.0",  # pin version to work with sphinx-book-theme