diff --git a/requirements.txt b/requirements.txt
index b381b49..fe226ff 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 mkdocs==1.0.4
 mkdocs-material==3.0.4
-pygments==2.2.0
+pygments==2.7.4
 pymdown-extensions==5.0