diff --git a/requirements.txt b/requirements.txt
index b910801..c61c8d2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 commonmark==0.9.1
-Jinja2==2.11.3
+Jinja2==3.1.3
 MarkupSafe==1.1.1
 pycodestyle==2.5.0
 python-frontmatter==0.5.0