diff --git a/CHANGELOG.md b/CHANGELOG.md
index ebab428..ab10a1d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
-## 0.3.0 (2016-05-22)
+## 0.3.1 (2016-05-31)
 
-Re-Create all.
+Update.
 
 ### Added
 
@@ -16,4 +16,4 @@ Re-Create all.
 
 ### Fixed
 
-- Nothing
+- https://github.com/urfave/cli/blob/master/CHANGELOG.md#deprecated-cli-app-action-signature
diff --git a/command/ami.go b/command/ami.go
index 13c8104..62b70fe 100644
--- a/command/ami.go
+++ b/command/ami.go
@@ -31,7 +31,7 @@ type image struct {
 
 type images []image
 
-func CmdAmi(c *cli.Context) {
+func CmdAmi(c *cli.Context) error {
 	// logging
 	log.SetOutput(os.Stderr)
 
@@ -99,6 +99,8 @@ func CmdAmi(c *cli.Context) {
 	imageIds := sortImages(images)
 	// delete ami
 	svc.deleteImages(o.lifecycle, imageIds)
+
+	return nil
 }
 
 func (p images) Len() int {
diff --git a/command/ebs.go b/command/ebs.go
index 6cf2802..f3155db 100644
--- a/command/ebs.go
+++ b/command/ebs.go
@@ -28,7 +28,7 @@ type Snapshot struct {
 
 type Snapshots []Snapshot
 
-func CmdEbs(c *cli.Context) {
+func CmdEbs(c *cli.Context) error {
 	// logging
 	log.SetOutput(os.Stderr)
 
@@ -115,6 +115,7 @@ func CmdEbs(c *cli.Context) {
 		// If the number of snapshot is life-cycle or more, Delete snapshot.
 		svc.deleteSnapshots(o.lifeCycle, snapshotIds)
 	}
+	return nil
 }
 
 func (p Snapshots) Len() int {
diff --git a/version.go b/version.go
index 3444544..32f90e6 100644
--- a/version.go
+++ b/version.go
@@ -1,4 +1,4 @@
 package main
 
 const Name string = "recorder"
-const Version string = "0.3.0"
+const Version string = "0.3.1"