diff --git a/requirements.txt b/requirements.txt
index f585356..87e3a9a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -60,7 +60,7 @@ pytz==2018.9
 pyxdg==0.25
 PyYAML==3.12
 readme-renderer==24.0
-reportlab==3.4.0
+reportlab==3.5.55
 requests==2.21.0
 requests-toolbelt==0.8.0
 requests-unixsocket==0.1.5