diff --git a/cron/handler.go b/cron/handler.go
index b8da665..2be24dd 100644
--- a/cron/handler.go
+++ b/cron/handler.go
@@ -200,7 +200,7 @@ func (h *handler) deleteClosedTribalwarsWorlds() {
 	list, err := h.api.Servers.Browse(&shared_models.ServerFilter{
 		Key:    worlds,
 		Status: []shared_models.ServerStatus{shared_models.ServerStatusClosed},
-	})
+	}, nil)
 	if err != nil {
 		log.Print("deleteClosedTribalwarsWorlds: " + err.Error())
 		return
diff --git a/discord/commands.go b/discord/commands.go
index 6c7c3cf..7510309 100644
--- a/discord/commands.go
+++ b/discord/commands.go
@@ -287,7 +287,7 @@ func (s *Session) handleObserveCommand(m *discordgo.MessageCreate, args ...strin
 		return
 	}
 
-	server, err := s.cfg.API.Servers.Read(world)
+	server, err := s.cfg.API.Servers.Read(world, nil)
 	if err != nil || server == nil {
 		s.SendMessage(m.ChannelID, m.Author.Mention()+fmt.Sprintf(` świat %s jest nieobsługiwany.`, world))
 		return
diff --git a/go.mod b/go.mod
index 2a92123..151d72e 100644
--- a/go.mod
+++ b/go.mod
@@ -9,8 +9,8 @@ require (
 	github.com/joho/godotenv v1.3.0
 	github.com/pkg/errors v0.9.1
 	github.com/robfig/cron/v3 v3.0.1
-	github.com/tribalwarshelp/golang-sdk v0.0.0-20200607150457-971c5e02b4df
-	github.com/tribalwarshelp/shared v0.0.0-20200607152914-8ab83c6d1364
+	github.com/tribalwarshelp/golang-sdk v0.0.0-20200618154823-9b569d862c4b
+	github.com/tribalwarshelp/shared v0.0.0-20200618150949-896cd6c98d06
 	golang.org/x/net v0.0.0-20200528225125-3c3fba18258b // indirect
 	google.golang.org/protobuf v1.24.0 // indirect
 )
diff --git a/go.sum b/go.sum
index c72a8b0..c9977cb 100644
--- a/go.sum
+++ b/go.sum
@@ -99,12 +99,10 @@ github.com/stretchr/testify v1.6.0 h1:jlIyCplCJFULU/01vCkhKuTyc3OorI3bJFuw6obfgh
 github.com/stretchr/testify v1.6.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/tmthrgd/go-hex v0.0.0-20190904060850-447a3041c3bc h1:9lRDQMhESg+zvGYmW5DyG0UqvY96Bu5QYsTLvCHdrgo=
 github.com/tmthrgd/go-hex v0.0.0-20190904060850-447a3041c3bc/go.mod h1:bciPuU6GHm1iF1pBvUfxfsH0Wmnc2VbpgvbI9ZWuIRs=
-github.com/tribalwarshelp/golang-sdk v0.0.0-20200607150457-971c5e02b4df h1:nki0kQ7MyZnChZ7QDKyCc441rPEHBIZC8D3WWY0L+LM=
-github.com/tribalwarshelp/golang-sdk v0.0.0-20200607150457-971c5e02b4df/go.mod h1:8ALIvjiYLt0RVXz8TwDTJ3X5KAHv3M7+iYF/SvcA+1A=
-github.com/tribalwarshelp/shared v0.0.0-20200604161459-deeeccf99815 h1:c+BTJgJyif/HDt8bRxqNaK7zQReI59ho9yWdk7a/gNo=
-github.com/tribalwarshelp/shared v0.0.0-20200604161459-deeeccf99815/go.mod h1:tf+2yTHasV6jAF3V2deZ9slNoCyBzC0fMdTjI7clf6Y=
-github.com/tribalwarshelp/shared v0.0.0-20200607152914-8ab83c6d1364 h1:Pi3n/0FkrHrBO0oW9Lp6kRAEc4qKe7p8lohrEv4GOXE=
-github.com/tribalwarshelp/shared v0.0.0-20200607152914-8ab83c6d1364/go.mod h1:tf+2yTHasV6jAF3V2deZ9slNoCyBzC0fMdTjI7clf6Y=
+github.com/tribalwarshelp/golang-sdk v0.0.0-20200618154823-9b569d862c4b h1:llEvWvttrFdchHx4zP0ejbD354mhlBTJSbLg2wjh44s=
+github.com/tribalwarshelp/golang-sdk v0.0.0-20200618154823-9b569d862c4b/go.mod h1:N7Oj+E8No6kf63IAxb5xHMfzXcV6vst8vrZ3ihYHvHc=
+github.com/tribalwarshelp/shared v0.0.0-20200618150949-896cd6c98d06 h1:T87o4fice0XTUdAG/tctFCDiuyUGb10bY1hdWvwlrro=
+github.com/tribalwarshelp/shared v0.0.0-20200618150949-896cd6c98d06/go.mod h1:tf+2yTHasV6jAF3V2deZ9slNoCyBzC0fMdTjI7clf6Y=
 github.com/vmihailenco/bufpool v0.1.5/go.mod h1:fL9i/PRTuS7AELqAHwSU1Zf1c70xhkhGe/cD5ud9pJk=
 github.com/vmihailenco/bufpool v0.1.11 h1:gOq2WmBrq0i2yW5QJ16ykccQ4wH9UyEsgLm6czKAd94=
 github.com/vmihailenco/bufpool v0.1.11/go.mod h1:AFf/MOy3l2CFTKbxwt0mp2MwnqjNEs5H/UxrkA5jxTQ=