diff --git a/requirements.txt b/requirements.txt
index 2df9e54..f978da7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ CommonMark==0.5.4
 Jinja2==2.10.1
 MarkupSafe==0.23
 PyYAML==5.2
-Pygments==2.0.2
+Pygments==2.7.4
 Sphinx==1.3.1
 sphinxcontrib-phpdomain==0.1.4
 alabaster==0.7.6