diff --git a/Chapter10/Ch10/server/requirements.txt b/Chapter10/Ch10/server/requirements.txt
index 0ae6787..9fad5f3 100644
--- a/Chapter10/Ch10/server/requirements.txt
+++ b/Chapter10/Ch10/server/requirements.txt
@@ -7,7 +7,7 @@ idna==2.6
 itsdangerous==0.24
 Jinja2==2.10
 MarkupSafe==1.0
-Pillow==5.0.0
+Pillow==9.0.1
 python-dateutil==2.7.0
 requests==2.18.4
 six==1.11.0