diff --git a/docs/requirements.txt b/docs/requirements.txt
index f2a14e39..ebbc5a84 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -15,7 +15,7 @@ pathtools==0.1.2
 pluggy==0.6.0
 port-for==0.3.1
 py==1.5.2
-Pygments==2.2.0
+Pygments==2.7.4
 pyparsing==2.2.0
 pytz==2018.3
 PyYAML==3.12