diff --git a/requirements.txt b/requirements.txt
index 1ab5baf..b8d80a6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -93,3 +93,4 @@ urllib3==1.25.7
 wcwidth==0.1.7
 webencodings==0.5.1
 widgetsnbextension==3.5.1
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability