diff --git a/Chapter11/app/requirements.txt b/Chapter11/app/requirements.txt
index 5b5a84c..077c327 100644
--- a/Chapter11/app/requirements.txt
+++ b/Chapter11/app/requirements.txt
@@ -34,7 +34,7 @@ pbr==5.1.3
 pep8==1.7.1
 pexpect==4.6.0
 pickleshare==0.7.5
-Pillow==6.2.0
+Pillow==9.3.0
 pkginfo==1.4.2
 pluggy==0.8.0
 ply==3.11