diff --git a/configure.ac b/configure.ac
index 8a94642..1ca6426 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,7 +27,7 @@ AC_SUBST(LDFLAGS)
 GLIB_REQUIRED=2.38.0
 GTK_REQUIRED=3.12.2
 GEE_REQUIRED=0.10.5
-ECAL_REQUIRED=3.8.5
+ECAL_REQUIRED=3.13.90
 LIBSOUP_REQUIRED=2.44
 GDATA_REQUIRED=0.14.0
 GOA_REQUIRED=3.8.3
diff --git a/src/backing/eds/backing-eds-calendar-source.vala b/src/backing/eds/backing-eds-calendar-source.vala
index ee6a572..5009b5d 100644
--- a/src/backing/eds/backing-eds-calendar-source.vala
+++ b/src/backing/eds/backing-eds-calendar-source.vala
@@ -256,7 +256,7 @@ internal class EdsCalendarSource : CalendarSource {
     
     // Invoked by EdsStore prior to making it available outside of unit
     internal async void open_async(Cancellable? cancellable) throws Error {
-        client = (E.CalClient) yield E.CalClient.connect(eds_source, E.CalClientSourceType.EVENTS,
+        client = (E.CalClient) yield E.CalClient.connect(eds_source, E.CalClientSourceType.EVENTS, 1,
             cancellable);
         
         client.bind_property("readonly", this, PROP_READONLY, BindingFlags.SYNC_CREATE);
diff --git a/vapi/libecal-1.2.vapi b/vapi/libecal-1.2.vapi
index 6ead3ec..46fd711 100644
--- a/vapi/libecal-1.2.vapi
+++ b/vapi/libecal-1.2.vapi
@@ -23,7 +23,7 @@ namespace E {
 		public bool check_save_schedules ();
 		public static bool check_timezones (iCal.icalcomponent comp, GLib.List comps, GLib.Callback tzlookup, void* ecalclient, GLib.Cancellable cancellable) throws GLib.Error;
 		[CCode (finish_name = "e_cal_client_connect_finish")]
-		public static async unowned E.Client connect (E.Source source, E.CalClientSourceType source_type, GLib.Cancellable cancellable) throws GLib.Error;
+		public static async unowned E.Client connect (E.Source source, E.CalClientSourceType source_type, uint32 wait_for_connected_seconds, GLib.Cancellable cancellable) throws GLib.Error;
 		public static unowned E.Client connect_sync (E.Source source, E.CalClientSourceType source_type, GLib.Cancellable cancellable) throws GLib.Error;
 		[CCode (finish_name = "e_cal_client_create_object_finish")]
 		public async void create_object (iCal.icalcomponent icalcomp, GLib.Cancellable? cancellable, out string out_uid) throws GLib.Error;