diff --git a/dev_requirements.txt b/dev_requirements.txt
index 2478418..87f62ff 100644
--- a/dev_requirements.txt
+++ b/dev_requirements.txt
@@ -5,3 +5,4 @@ pypandoc
 requests-mock==0.7.0
 requests>=2.20.0,<3
 unittest2
+setuptools>=65.5.1 # not directly required, pinned by Snyk to avoid a vulnerability