diff --git a/pyproject.toml b/pyproject.toml
index bba7589a..d34bd50d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -53,7 +53,7 @@ docs = [
     "myst-nb==1.3.0",
     "sphinx-book-theme==1.1.4",
     "sphinx-argparse==0.5.2",
-    "sphinx-toolbox==4.1.0",
+    "sphinx-toolbox==4.1.1",
 ]
 
 [project.scripts]
diff --git a/src/lobsterpy/featurize/core.py b/src/lobsterpy/featurize/core.py
index 9efc8adb..694a40e1 100644
--- a/src/lobsterpy/featurize/core.py
+++ b/src/lobsterpy/featurize/core.py
@@ -843,7 +843,7 @@ def get_n_moment(
         else:
             p = energies
 
-        return np.trapz(p**n * coxx, x=energies) / np.trapz(coxx, x=energies)
+        return np.trapezoid(p**n * coxx, x=energies) / np.trapezoid(coxx, x=energies)
 
     @staticmethod
     def get_cohp_edge(