diff --git a/requirements.txt b/requirements.txt
index 01a53ea..10403fa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ attrs==18.2.0
 Automat==0.7.0
 backcall==0.1.0
 beautifulsoup4==4.6.3
-bleach==3.0.0
+bleach==3.3.0
 bokeh==0.13.0
 boto==2.49.0
 boto3==1.9.31