diff --git a/docs/requirements.txt b/docs/requirements.txt
index fb4e745..e10aecd 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -12,7 +12,7 @@ MarkupSafe==1.1.1
 matplotlib==3.1.3
 numpy==1.18.1
 packaging==20.1
-Pygments==2.5.2
+Pygments==2.7.4
 pyparsing==2.4.6
 python-dateutil==2.8.1
 pytz==2019.3