diff --git a/dev-requirements.txt b/dev-requirements.txt
index 67d88af..a2106bf 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -7,4 +7,4 @@ icalendar==6.1.3
 # test
 pytest==8.3.5
 coverage==7.8.0
-black==24.10.0
+black==25.1.0