diff --git a/requirements.txt b/requirements.txt
index 846e363..eb52c02 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ Markdown==3.0.1
 MarkupSafe==1.1.0
 mysqlclient==1.3.13
 openapi-codec==1.3.2
-Pygments==2.2.0
+Pygments==2.7.4
 python-dateutil==2.7.5
 pytz==2018.5
 requests==2.21.0