diff --git a/requirements.txt b/requirements.txt
index 8a4a6b4..a74df3f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 click==6.7
-Flask==0.12.2
+Flask==0.12.3
 itsdangerous==0.24
 Jinja2==2.9.6
 lxml==4.0.0