diff --git a/docs/etc/requirements.txt b/docs/etc/requirements.txt
index 15ecd843b..a678cc6d0 100644
--- a/docs/etc/requirements.txt
+++ b/docs/etc/requirements.txt
@@ -9,7 +9,7 @@ imagesize==1.1.0
 Jinja2==2.10
 MarkupSafe==1.1.0
 packaging==18.0
-Pygments==2.3.0
+Pygments==2.7.4
 pyparsing==2.3.0
 pytz==2018.7
 recommonmark==0.4.0