diff --git a/assignment3/requirements.txt b/assignment3/requirements.txt
old mode 100755
new mode 100644
index 8273b61..1ed69c9
--- a/assignment3/requirements.txt
+++ b/assignment3/requirements.txt
@@ -7,7 +7,7 @@ async-timeout==3.0.0
 attrs==18.1.0
 backports-abc==0.4
 backports.ssl-match-hostname==3.5.0.1
-bleach==1.5.0
+bleach==3.1.4
 certifi==2015.11.20.1
 chardet==3.0.4
 cycler==0.10.0