diff --git a/requirements.txt b/requirements.txt
index 04e43f1..8c6df44 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 tornado==6.0.4
 isodate==0.6.0
 pytest==5.4.1
-schwifty==2020.11.0
+schwifty==2023.6.0
 Cerberus==1.3.2
 validator-collection==1.5.0
\ No newline at end of file