diff --git a/requirements.txt b/requirements.txt
index 5d836d5..b0eb56f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ idna==2.5
 imagesize==0.7.1
 Jinja2==2.9.6
 MarkupSafe==1.0
-Pygments==2.2.0
+Pygments==2.7.4
 pytz==2017.2
 recommonmark==0.4.0
 requests==2.18.1