diff --git a/src/requirements.txt b/src/requirements.txt
index c589345..e43e637 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -6,3 +6,4 @@ pandas==1.2.4
 rdflib==6.2.0
 requests==2.25.1
 spacy==3.4.1
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability