diff --git a/requirements.txt b/requirements.txt
index 6dd1342..9759922 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ tensorflow-gpu==1.10.0
 dm-sonnet==1.23
 matplotlib==2.2.2
 numpy==1.14.5
-Pillow==5.1.0
+Pillow==9.3.0
 scipy==1.1.0
 SimpleITK==1.1.0
 tensorboard==1.10.0