diff --git a/requirements.txt b/requirements.txt
index 3c51a93..92a9128 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-bleach==1.5.0
+bleach==3.3.0
 bokeh==0.12.9
 certifi==2016.2.28
 cycler==0.10.0