diff --git a/dev-requirements.txt b/dev-requirements.txt
index 3d26596..2d920bd 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -2,7 +2,7 @@
 requests==2.32.3
 beautifulsoup4==4.12.3
 tqdm==4.67.0
-icalendar==6.0.1
+icalendar==6.1.0
 
 # test
 pytest==8.3.3