diff --git a/Chapter09/Ch9/server/requirements.txt b/Chapter09/Ch9/server/requirements.txt
index 0ae6787..5ef3f65 100644
--- a/Chapter09/Ch9/server/requirements.txt
+++ b/Chapter09/Ch9/server/requirements.txt
@@ -11,5 +11,5 @@ Pillow==5.0.0
 python-dateutil==2.7.0
 requests==2.18.4
 six==1.11.0
-urllib3==1.22
+urllib3==1.26.5
 Werkzeug==0.14.1