diff --git a/sync_calendar.yml b/sync_calendar.yml
index cc9a836..dd81af3 100644
--- a/sync_calendar.yml
+++ b/sync_calendar.yml
@@ -8,6 +8,12 @@
         state: present
         executable: pip3
 
+- name: vobject-Modul installieren
+      ansible.builtin.pip:
+        name: vobject
+        state: present
+        executable: pip3
+
     - name: Kalender synchronisieren
       calendar_sync:
         source_url: "{{ source_url }}"