diff --git a/backend/requirements.txt b/backend/requirements.txt
index c91b639..30969e2 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -7,3 +7,4 @@ djangorestframework-oauth>=1.0.1
 gunicorn>=0.17.4
 html2text>=2016.1.8
 pytz>=2012f
+sqlparse>=0.5.0 # not directly required, pinned by Snyk to avoid a vulnerability