diff --git a/requirements.txt b/requirements.txt
index 2dbd6c4..a2e0ee3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,4 +14,5 @@ solders
 weasyprint
 markdown
 pygments
-beautifulsoup4
\ No newline at end of file
+beautifulsoup4
+python-dateutil