diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 96c8f03..158ecdb
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ amqp==2.2.2
 backports.ssl-match-hostname==3.5.0.1
 bcrypt==3.1.7
 billiard==3.5.0.3
-bleach==2.1.1
+bleach==3.3.0
 blinker==1.4
 celery==4.1.0
 certifi==2017.11.5