diff --git a/requirements.txt b/requirements.txt
index de413cd..8064821 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,3 +4,4 @@ scikit-image==0.14.2
 numpy==1.16.2
 numpydoc==0.8.0
 pillow>=8.0.1 # not directly required, pinned by Snyk to avoid a vulnerability
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability