diff --git a/pyproject.toml b/pyproject.toml
index db9c194d..f60e8c68 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,6 +49,7 @@ docs = [
     "ipykernel",
     "myst_nb",
     "funlib.persistence",
+    "scipy",
 ]
 
 # # module specific overrides