diff --git a/assignment1/requirements.txt b/assignment1/requirements.txt
old mode 100755
new mode 100644
index 4d9577c..d708458
--- a/assignment1/requirements.txt
+++ b/assignment1/requirements.txt
@@ -1,6 +1,6 @@
 attrs==19.1.0
 backcall==0.1.0
-bleach==3.1.0
+bleach==3.1.1
 certifi==2019.3.9
 chardet==3.0.4
 colorama==0.4.1