diff --git a/assignment2/requirements.txt b/assignment2/requirements.txt
old mode 100755
new mode 100644
index 046234c..545b30e
--- a/assignment2/requirements.txt
+++ b/assignment2/requirements.txt
@@ -2,7 +2,7 @@ absl-py==0.7.1
 astor==0.7.1
 attrs==19.1.0
 backcall==0.1.0
-bleach==3.1.0
+bleach==3.3.0
 cycler==0.10.0
 Cython==0.29.7
 decorator==4.4.0