diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 8e850f9..f0d425d
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ pexpect==4.2.1
 pickleshare==0.7.4
 prompt-toolkit==1.0.14
 ptyprocess==0.5.1
-Pygments==2.2.0
+Pygments==2.7.4
 pyparsing==2.2.0
 python-dateutil==2.6.0
 pytz==2017.2