diff --git a/requirements.txt b/requirements.txt
index d403a5a..7c9e4c9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 appnope==0.1.0
-bleach==2.1.3
+bleach==3.3.0
 bokeh==0.12.14
 certifi==2018.1.18
 chardet==3.0.4