diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index bd866e0..61595b6
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ atari-py==0.1.1
 atomicwrites==1.1.5
 attrs==18.1.0
 backcall==0.1.0
-bleach==1.5.0
+bleach==3.1.4
 certifi==2018.4.16
 cffi==1.11.5
 chardet==3.0.4