diff --git a/requirements.txt b/requirements.txt
index a75c2401c..c49917a40 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -41,5 +41,6 @@ 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