diff --git a/requirements.txt b/requirements.txt
index 181142cd..796c0604 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ attrs==17.2.0
 Automat==0.6.0
 backports.shutil-get-terminal-size==1.0.0
 backports.weakref==1.0.post1
-bleach==1.5.0
+bleach==3.3.0
 certifi==2017.7.27.1
 cffi==1.10.0
 chardet==3.0.4