diff --git a/requirements.txt b/requirements.txt
index 12d31e8..564553d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,4 +23,5 @@ python-memcached
 pillow
 git+git://github.com/werner2101/python-osm.git
 Flask-Elasticsearch
-Flask-Script
\ No newline at end of file
+Flask-Script
+wtforms>=3.0.0a1 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file