diff --git a/requirements.txt b/requirements.txt
index 5c2d657..9962b88 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ astor==0.8.0
 attrs==19.1.0
 Automat==0.7.0
 backcall==0.1.0
-bleach==2.1.4
+bleach==3.3.0
 cachetools==3.1.1
 certifi==2018.8.24
 cffi==1.11.5