diff --git a/manager/requirements.txt b/manager/requirements.txt
index 008f65b..1090176 100644
--- a/manager/requirements.txt
+++ b/manager/requirements.txt
@@ -17,7 +17,7 @@ Jinja2==2.10
 kombu==4.2.0
 MarkupSafe==1.0
 numpy==1.14.3
-Pillow==5.1.0
+Pillow==9.0.1
 pommerman==0.2.0
 pyglet==1.4.0a1
 pytz==2018.4