diff --git a/go.mod b/go.mod
index afc02c7..4e8d1a9 100644
--- a/go.mod
+++ b/go.mod
@@ -5,5 +5,5 @@ require (
 	github.com/pkg/errors v0.8.1
 	github.com/spf13/cobra v0.0.3
 	github.com/spf13/viper v1.3.1
-	github.com/yuzutech/kroki-go v0.2.0
+	github.com/yuzutech/kroki-go v0.3.0
 )
diff --git a/go.sum b/go.sum
index 2442642..4a59b70 100644
--- a/go.sum
+++ b/go.sum
@@ -39,6 +39,8 @@ github.com/yuzutech/kroki-go v0.1.1-0.20190219183547-bfe91c3e23c2 h1:1Vzhq5g76xA
 github.com/yuzutech/kroki-go v0.1.1-0.20190219183547-bfe91c3e23c2/go.mod h1:Cys0gjXdlViePdrZ4AKMUyX4yVIAoIhMBhvpYPJahrk=
 github.com/yuzutech/kroki-go v0.2.0 h1:BZ7CMkepyJ4JGUrO43GRRKTCMnAOc0eFceZBrPm6zuQ=
 github.com/yuzutech/kroki-go v0.2.0/go.mod h1:Cys0gjXdlViePdrZ4AKMUyX4yVIAoIhMBhvpYPJahrk=
+github.com/yuzutech/kroki-go v0.3.0 h1:GIQv3jVQF8GNl6k+el55pksFeV7mJ9dQr9wPjyNj6nI=
+github.com/yuzutech/kroki-go v0.3.0/go.mod h1:Cys0gjXdlViePdrZ4AKMUyX4yVIAoIhMBhvpYPJahrk=
 golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a h1:1n5lsVfiQW3yfsRGu98756EH1YthsFqr/5mxHduZW2A=
 golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=