diff --git a/prepro/requirements.txt b/prepro/requirements.txt
old mode 100755
new mode 100644
index adc1d46..af76b4b
--- a/prepro/requirements.txt
+++ b/prepro/requirements.txt
@@ -42,7 +42,7 @@ lazr.uri==1.0.3
 louis==3.5.0
 lxml==4.2.1
 macaroonbakery==1.1.3
-Mako==1.0.7
+Mako==1.2.2
 Markdown==3.0.1
 MarkupSafe==1.0
 matplotlib==3.0.1