diff --git a/requirements.txt b/requirements.txt
index d90136a..de0b335 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ Jinja2==2.9.6
 MarkupSafe==1.0
 pluggy==0.4.0
 py==1.4.33
-Pygments==2.2.0
+Pygments==2.7.4
 pytz==2017.2
 recommonmark==0.4.0
 requests==2.13.0