diff --git a/requirements.txt b/requirements.txt
index 2024cf92..c829a43b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,7 +22,7 @@ jedi==0.9.0
 jinja2==2.7
 libmodernize==0.5
 markdown==2.6.2
-markdown2==2.2.1
+markdown2==2.5.4
 markupsafe
 matplotlib==1.4.0
 mccabe==0.4.0