diff --git a/backend/requirements.txt b/backend/requirements.txt
index fcbc00e657..b5b54fbe7f 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -5,7 +5,7 @@ astor==0.8.0
 attrs==19.3.0
 backcall==0.1.0
 bcrypt==3.1.7
-bleach==3.1.3
+bleach==3.3.0
 blessed==1.17.4
 bokeh==2.0.0
 botocore==1.14.17