diff --git a/Chapter09/TestApp/requirements.txt b/Chapter09/TestApp/requirements.txt
index be70dbe..d38778e 100644
--- a/Chapter09/TestApp/requirements.txt
+++ b/Chapter09/TestApp/requirements.txt
@@ -6,7 +6,7 @@ MarkupSafe==1.1.1
 Pygments==2.4.2
 SQLAlchemy==1.3.9
 Werkzeug==0.16.0
-httpie==1.0.3
+httpie==3.1.0
 itsdangerous==1.1.0
 python-dateutil==2.8.0
 requests==2.20.1