diff --git a/requirements.txt b/requirements.txt
index f5e6688..cae627d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -61,7 +61,7 @@ python-debian==0.1.32
 pytz==2018.3
 pyxdg==0.25
 PyYAML==3.12
-reportlab==3.4.0
+reportlab==3.5.55
 requests==2.18.4
 requests-unixsocket==0.1.5
 SecretStorage==2.3.1