diff --git a/cleanba/envs/box_world/requirements.txt b/cleanba/envs/box_world/requirements.txt
index 324281f..2b2e120 100644
--- a/cleanba/envs/box_world/requirements.txt
+++ b/cleanba/envs/box_world/requirements.txt
@@ -2,4 +2,4 @@ imageio==2.6.1
 matplotlib==3.1.1
 numpy==1.17.2
 gym==0.15.3
-Pillow==6.2.1
+Pillow==12.3.0