diff --git a/requirements.txt b/requirements.txt
index ef192c0f..eb998f85 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -72,7 +72,7 @@ pytoml==0.1.7
 pytz==2012c
 pyxdg==0.25
 pyzmq==14.0.1
-reportlab==3.0
+reportlab==3.5.55
 requests==2.2.1
 scikit-learn==0.15.2
 scipy==0.13.3