diff --git a/requirements.txt b/requirements.txt
index 94afd8d..f8dce5c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -89,7 +89,7 @@ pyxdg==0.26
 PyYAML==5.1.2
 pyzmq==18.0.2
 qtconsole==4.5.1
-reportlab==3.3.0
+reportlab==3.5.55
 requests==2.22.0
 scikit-learn==0.21.2
 scipy==1.3.0