diff --git a/Lesson5/ActivityA/requirements.txt b/Lesson5/ActivityA/requirements.txt
index 25e0469..5726144 100644
--- a/Lesson5/ActivityA/requirements.txt
+++ b/Lesson5/ActivityA/requirements.txt
@@ -4,4 +4,4 @@ itsdangerous==0.24
 Jinja2==2.9.6
 MarkupSafe==1.0
 nose==1.3.7
-Werkzeug==0.12.2
+Werkzeug==0.15.3