diff --git a/ActivityPub/models.go b/ActivityPub/models.go
index 4f53ecf..05eeb36 100644
--- a/ActivityPub/models.go
+++ b/ActivityPub/models.go
@@ -9,9 +9,9 @@ import (
 	"net/url"
 	"time"
 
-	"github.com/patrickmn/go-cache"
-	"github.com/satori/go.uuid"
-	"github.com/yukimochi/Activity-Relay/KeyLoader"
+	cache "github.com/patrickmn/go-cache"
+	uuid "github.com/satori/go.uuid"
+	keyloader "github.com/yukimochi/Activity-Relay/KeyLoader"
 )
 
 // PublicKey : Activity Certificate.
diff --git a/cli/cli.go b/cli/cli.go
index 45348a4..ec0a614 100644
--- a/cli/cli.go
+++ b/cli/cli.go
@@ -9,8 +9,8 @@ import (
 	"github.com/go-redis/redis"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
-	"github.com/yukimochi/Activity-Relay/KeyLoader"
-	"github.com/yukimochi/Activity-Relay/State"
+	keyloader "github.com/yukimochi/Activity-Relay/KeyLoader"
+	state "github.com/yukimochi/Activity-Relay/State"
 )
 
 var hostname *url.URL
diff --git a/cli/config.go b/cli/config.go
index 61cffdc..856162b 100644
--- a/cli/config.go
+++ b/cli/config.go
@@ -7,7 +7,7 @@ import (
 	"os"
 
 	"github.com/spf13/cobra"
-	"github.com/yukimochi/Activity-Relay/State"
+	state "github.com/yukimochi/Activity-Relay/State"
 )
 
 const (
diff --git a/cli/follow.go b/cli/follow.go
index c1483e0..8041e54 100644
--- a/cli/follow.go
+++ b/cli/follow.go
@@ -8,8 +8,8 @@ import (
 
 	"github.com/RichardKnop/machinery/v1/tasks"
 	"github.com/spf13/cobra"
-	"github.com/yukimochi/Activity-Relay/ActivityPub"
-	"github.com/yukimochi/Activity-Relay/State"
+	activitypub "github.com/yukimochi/Activity-Relay/ActivityPub"
+	state "github.com/yukimochi/Activity-Relay/State"
 )
 
 func followCmdInit() *cobra.Command {
diff --git a/handle.go b/handle.go
index 9dc54d3..4f9925a 100644
--- a/handle.go
+++ b/handle.go
@@ -9,8 +9,8 @@ import (
 	"os"
 
 	"github.com/RichardKnop/machinery/v1/tasks"
-	"github.com/yukimochi/Activity-Relay/ActivityPub"
-	"github.com/yukimochi/Activity-Relay/State"
+	activitypub "github.com/yukimochi/Activity-Relay/ActivityPub"
+	state "github.com/yukimochi/Activity-Relay/State"
 )
 
 func handleWebfinger(writer http.ResponseWriter, request *http.Request) {
diff --git a/handle_test.go b/handle_test.go
index 1a7efd0..e7aac9b 100644
--- a/handle_test.go
+++ b/handle_test.go
@@ -11,8 +11,8 @@ import (
 	"strconv"
 	"testing"
 
-	"github.com/yukimochi/Activity-Relay/ActivityPub"
-	"github.com/yukimochi/Activity-Relay/State"
+	activitypub "github.com/yukimochi/Activity-Relay/ActivityPub"
+	state "github.com/yukimochi/Activity-Relay/State"
 )
 
 const (
diff --git a/main.go b/main.go
index 8888dd2..b1853f9 100644
--- a/main.go
+++ b/main.go
@@ -10,11 +10,11 @@ import (
 	"github.com/RichardKnop/machinery/v1"
 	"github.com/RichardKnop/machinery/v1/config"
 	"github.com/go-redis/redis"
-	"github.com/patrickmn/go-cache"
+	cache "github.com/patrickmn/go-cache"
 	"github.com/spf13/viper"
-	"github.com/yukimochi/Activity-Relay/ActivityPub"
-	"github.com/yukimochi/Activity-Relay/KeyLoader"
-	"github.com/yukimochi/Activity-Relay/State"
+	activitypub "github.com/yukimochi/Activity-Relay/ActivityPub"
+	keyloader "github.com/yukimochi/Activity-Relay/KeyLoader"
+	state "github.com/yukimochi/Activity-Relay/State"
 )
 
 // Actor : Relay's Actor
diff --git a/worker/sender.go b/worker/sender.go
index 4cb128a..14248e7 100644
--- a/worker/sender.go
+++ b/worker/sender.go
@@ -10,7 +10,7 @@ import (
 	"net/http"
 	"time"
 
-	"github.com/Songmu/go-httpdate"
+	httpdate "github.com/Songmu/go-httpdate"
 	"github.com/yukimochi/httpsig"
 )
 
diff --git a/worker/worker.go b/worker/worker.go
index ff1d75d..d29ec8d 100644
--- a/worker/worker.go
+++ b/worker/worker.go
@@ -10,10 +10,10 @@ import (
 	"github.com/RichardKnop/machinery/v1"
 	"github.com/RichardKnop/machinery/v1/config"
 	"github.com/go-redis/redis"
-	"github.com/satori/go.uuid"
+	uuid "github.com/satori/go.uuid"
 	"github.com/spf13/viper"
-	"github.com/yukimochi/Activity-Relay/ActivityPub"
-	"github.com/yukimochi/Activity-Relay/KeyLoader"
+	activitypub "github.com/yukimochi/Activity-Relay/ActivityPub"
+	keyloader "github.com/yukimochi/Activity-Relay/KeyLoader"
 )
 
 // Actor : Relay's Actor