diff --git a/engines/owl_dns/requirements.txt b/engines/owl_dns/requirements.txt
index 34c8786f..d2ac76b2 100644
--- a/engines/owl_dns/requirements.txt
+++ b/engines/owl_dns/requirements.txt
@@ -23,3 +23,4 @@ urllib3==1.26.13
 validators==0.20.0
 werkzeug==2.2.3
 #whois==0.9.27
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability