diff --git a/server/requirements.txt b/server/requirements.txt
index 7db81fe5..3dfc4165 100644
--- a/server/requirements.txt
+++ b/server/requirements.txt
@@ -13,7 +13,7 @@ django-formset-js-improved
 django-multifactor==0.7.2
 djangorestframework==3.15.*
 emoji==2.14.*
-icalendar==5.0.*
+icalendar==6.1.*
 lxml==5.3.*
 matplotlib==3.9.*
 numpy==2.1.*