diff --git a/requirements.txt b/requirements.txt
index 1e53145..fd873da 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -54,7 +54,7 @@ python-systemd==231
 pytz==2017.2
 pyxdg==0.25
 PyYAML==3.12
-reportlab==3.3.0
+reportlab==3.5.55
 requests==2.9.1
 scikit-learn==0.19.1
 scipy==0.19.1