diff --git a/requirements.txt b/requirements.txt
index 8c32751..3c90fdf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ bcrypt==3.1.7
 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
 boto3==1.9.202