diff --git a/themes/hugo-theme-flat/layouts/partials/side-calendar.html b/themes/hugo-theme-flat/layouts/partials/side-calendar.html
index c6e84e4..eda5e9f 100644
--- a/themes/hugo-theme-flat/layouts/partials/side-calendar.html
+++ b/themes/hugo-theme-flat/layouts/partials/side-calendar.html
@@ -2,7 +2,7 @@
     <h2>Termine</h2>
     <ul id="calendar" class="loading">
         <br>
-        <a href="https://cloud.c3re.de/apps/calendar/p/RLKKkdjNYgXH8yEz/dayGridMonth/now">Zum Kalender</a>
+        <a href="https://klaut.c3re.de/apps/calendar/p/A7sGSxRJdzsHBJea">Zum Kalender</a>
         <br>
         <br>
         <li class="loading">Loading...</li>
diff --git a/themes/hugo-theme-flat/static/js/calendar.js b/themes/hugo-theme-flat/static/js/calendar.js
index 96c61db..e8f5801 100644
--- a/themes/hugo-theme-flat/static/js/calendar.js
+++ b/themes/hugo-theme-flat/static/js/calendar.js
@@ -1,6 +1,5 @@
 const calRefresh=function () {
-  let url =
-      "https://ical2json.c3re.de/api/?url=https%3A%2F%2Fcloud.c3re.de%2Fremote.php%2Fdav%2Fpublic-calendars%2FRLKKkdjNYgXH8yEz%3Fexport&start=today&end=next+month&maxitems=10";
+  let url = "https://ical2json.c3re.de/api/?url=https%3A%2F%2Fklaut.c3re.de%2Fremote.php%2Fdav%2Fpublic-calendars%2FA7sGSxRJdzsHBJea%3Fexport&start=today+&end=last+day+of+next+month&maxitems=10"
   let xmlHttp = new XMLHttpRequest();
   let zeropad = function (i) {
     let o = "";