diff --git a/greent/requirements.txt b/greent/requirements.txt
index e4c6eefe..b3cd75cb 100644
--- a/greent/requirements.txt
+++ b/greent/requirements.txt
@@ -1,6 +1,6 @@
 appnope==0.1.0
 autovizwidget==0.12.4
-bleach==2.1.1
+bleach==3.3.0
 bravado==9.0.2
 bravado-core==4.9.1
 certifi==2017.7.27.1