diff --git a/requirements.txt b/requirements.txt
index 6a1e02ff..fb5bf253 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,4 +3,5 @@ BeautifulSoup4
 coverage<7.6 # manual enforcement for coveralls dependency: coveralls 1.9.2 has requirement coverage<5.0,>=3.6
 codacy-coverage
 codecov
-coveralls
\ No newline at end of file
+coveralls
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file