diff --git a/requirements.txt b/requirements.txt
index ceb62b6..670f595 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ attrs==19.3.0
 Babel==2.8.0
 backcall==0.1.0
 beautifulsoup4==4.9.0
-bleach==3.1.5
+bleach==3.3.0
 blinker==1.4
 bokeh==2.0.2
 cairocffi==1.1.0