diff --git a/dendronet_legacy/requirements.txt b/dendronet_legacy/requirements.txt
index cda78a0..3bfd997 100644
--- a/dendronet_legacy/requirements.txt
+++ b/dendronet_legacy/requirements.txt
@@ -77,7 +77,7 @@ pytz==2018.3
 pyxdg==0.25
 PyYAML==3.12
 pyzmq==16.0.2
-reportlab==3.4.0
+reportlab==3.5.55
 requests==2.18.4
 requests-unixsocket==0.1.5
 scikit-learn==0.20.0