diff --git a/test/requirements.txt b/test/requirements.txt
index fb6e048..edd54eb 100644
--- a/test/requirements.txt
+++ b/test/requirements.txt
@@ -1,8 +1,9 @@
 tensorflow==2.11.0
 darts==0.23.1
 prophet==1.1.2
-holidays==0.24
+holidays==0.45
 greykite==0.2.0
 shap==0.41.0
 pmdarima==2.0.2
 pandas_datareader==0.10.0
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability