diff --git a/go.mod b/go.mod
index 8711b28..1b1a7c2 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module g.arns.lt/zordsdavini/arns-lt-tree-push-service
 go 1.19
 
 require (
-	g.arns.lt/zordsdavini/zord-tree v0.2.1
+	g.arns.lt/zordsdavini/zord-tree v0.2.3
 	google.golang.org/grpc v1.48.0
 	google.golang.org/protobuf v1.28.1
 )
diff --git a/go.sum b/go.sum
index 776ce74..ccfcf05 100644
--- a/go.sum
+++ b/go.sum
@@ -2,8 +2,8 @@ cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMT
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 g.arns.lt/zordsdavini/abcex v1.0.0 h1:qQqlZ4DMfethCGK4I6yGaLqMrTzKNIshqpINd1l3t0E=
 g.arns.lt/zordsdavini/abcex v1.0.0/go.mod h1:YRcJgts3XZwI+LEkngpfUab3DkUAW387Irpr43hIym8=
-g.arns.lt/zordsdavini/zord-tree v0.2.1 h1:GYbwojTqCTcr/e4oYNxTUCP7V/2cD8xn/AYOecYGnxo=
-g.arns.lt/zordsdavini/zord-tree v0.2.1/go.mod h1:R9VMBwVwW6pu8yFIIgsMUv7YuWa48dj6DglkyXeTPik=
+g.arns.lt/zordsdavini/zord-tree v0.2.3 h1:RNiaTg18TgUJDA278LxfKxUmeoz2yz0V8JA7huU3m/o=
+g.arns.lt/zordsdavini/zord-tree v0.2.3/go.mod h1:R9VMBwVwW6pu8yFIIgsMUv7YuWa48dj6DglkyXeTPik=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
diff --git a/server.go b/server.go
index a651f1b..2c34e27 100644
--- a/server.go
+++ b/server.go
@@ -98,10 +98,10 @@ func removeContents(dir string) error {
 	return nil
 }
 
-func simplifyFilter(filter []*TreeRequest_Filter) map[string]string {
-	simpleFilter := make(map[string]string)
+func simplifyFilter(filter []*TreeRequest_Filter) map[string][]string {
+	simpleFilter := make(map[string][]string)
 	for _, f := range filter {
-		simpleFilter[f.Key] = f.Value
+		simpleFilter[f.Key] = append(simpleFilter[f.Key], f.Value)
 	}
 
 	return simpleFilter