diff --git a/requirements.txt b/requirements.txt
index 7993b77..3636cc6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,3 +22,4 @@ six==1.15.0
 tld==0.12.5
 urllib3==1.26.2
 zope.interface==5.2.0
+setuptools>=78.1.1 # not directly required, pinned by Snyk to avoid a vulnerability