diff --git a/requirements.txt b/requirements.txt
index 47d9e33..fbde667 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 Mako==1.2.2
 MarkupSafe==0.19
-reportlab==2.7
+reportlab==3.6.13
 wsgiref==0.1.2
 pytz==2018.9