diff --git a/Algorithms/pySINDy/requirements.txt b/Algorithms/pySINDy/requirements.txt
old mode 100755
new mode 100644
index 3621110..c87f093
--- a/Algorithms/pySINDy/requirements.txt
+++ b/Algorithms/pySINDy/requirements.txt
@@ -5,7 +5,7 @@ atomicwrites==1.2.1
 attrs==18.2.0
 Babel==2.6.0
 backcall==0.1.0
-bleach==3.0.2
+bleach==3.3.0
 certifi==2018.11.29
 chardet==3.0.4
 coverage==4.5.2