diff --git a/pyproject.toml b/pyproject.toml
index aa47792..5df4564 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -59,7 +59,7 @@ test = [
     'tox',
     'sphinx',
     'sphinx_rtd_theme',
-    'numpydoc==1.7.0',
+    'numpydoc==1.9.0',
 ]
 
 [tool.hatch.version]