diff --git a/go.mod b/go.mod
index 3ba90f9..8b2ba16 100644
--- a/go.mod
+++ b/go.mod
@@ -7,7 +7,7 @@ require (
 	github.com/gorilla/mux v1.7.4
 	github.com/nimezhu/asheets v0.0.1
 	github.com/nimezhu/box v0.0.1
-	github.com/nimezhu/data v0.0.2
+	github.com/nimezhu/data v0.0.3
 	github.com/nimezhu/go.uuid v1.2.1 // indirect
 	github.com/nimezhu/indexed v0.0.3 // indirect
     github.com/nimezhu/nbdata v0.0.1
diff --git a/go.sum b/go.sum
index f19dd84..7b1c41e 100644
--- a/go.sum
+++ b/go.sum
@@ -78,6 +78,8 @@ github.com/nimezhu/box v0.0.1 h1:s6wrOycyu9mjXSL8FKnDX/fOacSJ4WIv7xXkTPHPzO4=
 github.com/nimezhu/box v0.0.1/go.mod h1:JKrfqZzYxxx0CVzzJQT4SlEPkWHLwYI0lnE6umK69QM=
 github.com/nimezhu/data v0.0.2 h1:84A490p7hHHzm1oDnD0NuFRUd+OKWhtP9ASx7XSdqqA=
 github.com/nimezhu/data v0.0.2/go.mod h1:9tkJ46LYfz0iCohtPPAJ58b7/Rwb2JHmzaY7hbuwd1o=
+github.com/nimezhu/data v0.0.3 h1:/zi9NYZQOAF9wacaxMIdQX/eIFEy1XcTuodl8Y2+/Z4=
+github.com/nimezhu/data v0.0.3/go.mod h1:tm0zKrBRdcbcjZMEsApV9YKpXVYaXqrbWDjgKtbqvdM=
 github.com/nimezhu/genomedb v0.0.0-20171213193052-ac8125365d5b h1:+CuqkNDKSNp2mwSqt164bCJJEH1ig/JE0bIZnliOcBM=
 github.com/nimezhu/genomedb v0.0.0-20171213193052-ac8125365d5b/go.mod h1:+85jdRQLPulFvHUYvBFmdCC4541mNC9J+WESIpL4Rp0=
 github.com/nimezhu/go.uuid v1.2.1 h1:hhchJInlG/UkkIATvlfwc2G5Lz2E6xlTJJOx3VmMP0E=