diff --git a/requirements.txt b/requirements.txt
index 5e35838..495fba6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 markdown==3.2
-Pygments==2.7.4
+Pygments==2.15.0
 #python-markdown-math==0.6
 beautifulsoup4==4.6.3
 Jinja2>=2.10.1