diff --git a/requirements.txt b/requirements.txt
index 48c3028..a7bb829 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-Pygments==2.4.0
+Pygments==2.7.4
 mkdocs-material==4.3.1
 mkdocs==1.0.4