diff --git a/requirements.txt b/requirements.txt
index ffc2e3880..08529ea3d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -40,5 +40,6 @@ toml==0.10.2
 transformers==4.30.2
 voluptuous==0.13.1
 wandb==0.15.11
+scipy==1.11.4
 # for kohya_ss library
 -e . # no_verify leave this to specify not checking this a verification stage