diff --git a/plugins/libcalendaring/composer.json b/plugins/libcalendaring/composer.json
index 28841bd0..7ded05b0 100644
--- a/plugins/libcalendaring/composer.json
+++ b/plugins/libcalendaring/composer.json
@@ -26,6 +26,6 @@
     "require": {
         "php": ">=5.4.0",
         "roundcube/plugin-installer": ">=0.1.3",
-        "sabre/vobject": "~3.3.3"
+        "sabre/vobject": "~3.5.3"
     }
 }