diff --git a/doc/requirements.txt b/doc/requirements.txt
index c8630e4..960c4a0 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,6 +1,6 @@
-Flask==0.11.1
-Jinja2==2.8
+Flask==0.12
+Jinja2==2.9.5
 MarkupSafe==0.23
-Werkzeug==0.11.10
+Werkzeug==0.11.15
 gunicorn==19.6.0
 itsdangerous==0.24