diff --git a/python/requirements.txt b/python/requirements.txt
index 5cdc363..badec6c 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -6,7 +6,7 @@ pandas>=1.0.4
 matplotlib>=2.0.0
 LunarCalendar>=0.0.9
 convertdate>=2.1.2
-holidays>=0.10.2
+holidays>=0.11.3.1
 setuptools-git>=1.2
 python-dateutil>=2.8.0
 tqdm>=4.36.1