diff --git a/requirements.txt b/requirements.txt
index ce83403..336d4b0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 appdirs==1.4.3
 appnope==0.1.0
-bleach==2.0.0
+bleach==3.3.0
 bokeh==0.12.4
 decorator==4.0.11
 entrypoints==0.2.2