diff --git a/requirements.txt b/requirements.txt
index ec32d83e6..9fd633a47 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ olefile==0.47
 Pillow==10.1.0
 vobject==0.9.6.1
 msglite==0.30.0
-icalendar==5.0.12
+icalendar==5.0.13
 
 cryptography==41.0.7
 requests[security]==2.31.0