diff --git a/requirements.txt b/requirements.txt
index 480bf24ac..c413a71e2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,7 @@ icalendar==4.0.7
 invoke~=1.4
 pillow~=7.2
 python-mimeparse
-reportlab==3.5.51
+reportlab==3.5.52
 matplotlib>=3.1
 requests
 setuptools>=18.5