diff --git a/requirements.txt b/requirements.txt
index 007d9b1..fcaebfe 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -56,7 +56,7 @@ ptyprocess==0.6.0
 pydot==1.4.1
 pydot-ng==2.0.0
 pydotplus==2.0.2
-Pygments==2.4.2
+Pygments==2.7.4
 pyparsing==2.4.0
 pyrsistent==0.15.4
 python-dateutil==2.8.0