diff --git a/day1/requirement.txt b/day1/requirement.txt
index 8a0a245..613aa66 100644
--- a/day1/requirement.txt
+++ b/day1/requirement.txt
@@ -5,4 +5,4 @@ Jinja2==2.10.1
 MarkupSafe==1.1.1
 pkg-resources==0.0.0
 python-dotenv==0.10.2
-Werkzeug==0.15.4
+Werkzeug==0.15.5