diff --git a/pyproject.toml b/pyproject.toml
index e8dc15c..7856e69 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -77,6 +77,7 @@ docs = ["mkdocs>=1.0.4"]
 dev = [
 	"basic_pitch[data,test,tf,coreml,onnx,docs]",
 	"mypy",
+	"scipy-stubs",
 	"tox",
 ]