diff --git a/requirements.txt b/requirements.txt
index 58df06f..de80722 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@ PyPDF2==1.26.0
 python3-openid==3.1.0
 pytz==2017.2
 redis==2.10.6
-reportlab==3.4.0
+reportlab==3.5.55
 requests==2.18.4
 requests-oauthlib==0.8.0
 six==1.11.0