diff --git a/requirements.txt b/requirements.txt
index a475dd0..49b7dfe 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,6 +4,6 @@ nibabel~=3.1.1
 matplotlib~=3.3.3
 natsort~=7.0.1
 torch~=1.6.0
-monai==0.4.0
+monai==1.5.1
 torchvision~=0.7.0
 tensorboard~=2.3.0
\ No newline at end of file