diff --git a/requirements.txt b/requirements.txt
index 262bbf3..421404c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ backports.weakref==1.0.post1
 beautifulsoup4==4.7.1
 bitarray==0.9.3
 bkcharts==0.2
-bleach==3.1.4
+bleach==3.3.0
 bokeh==1.2.0
 boto==2.49.0
 Bottleneck==1.2.1