diff --git a/requirements.txt b/requirements.txt
index dd155f9..1fccd94 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 tornado==6.4.1
 isodate==0.6.1
 pytest==8.3.2
-schwifty==2024.6.1
+schwifty==2024.9.0
 Cerberus==1.3.5
 validator-collection==1.5.0