diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 6fb89d2..7cc1dd1
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 Jinja2==2.7.3
 MarkupSafe==0.23
-Pygments==1.6
+Pygments==2.7.4
 Sphinx==1.2.3
 docutils==0.12
 enum34==1.0.3