diff --git a/requirements.txt b/requirements.txt
index d36781893..e582eed0f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,7 +34,7 @@ olefile==0.47
 Pillow==10.1.0
 vobject==0.9.6.1
 msglite==0.30.0
-icalendar==5.0.12
+icalendar==6.1.1
 
 cryptography==41.0.7
 requests[security]==2.31.0