diff --git a/internal/outcome/spdbus_test.go b/internal/outcome/spdbus_test.go
index 3fa8ad4..c0ea1d3 100644
--- a/internal/outcome/spdbus_test.go
+++ b/internal/outcome/spdbus_test.go
@@ -6,8 +6,8 @@ import (
 
 	"hakurei.app/container"
 	"hakurei.app/container/stub"
-	"hakurei.app/helper"
 	"hakurei.app/hst"
+	"hakurei.app/internal/helper"
 	"hakurei.app/message"
 	"hakurei.app/system"
 	"hakurei.app/system/acl"
diff --git a/system/dbus/dbus_test.go b/system/dbus/dbus_test.go
index 85aae5b..3a9af57 100644
--- a/system/dbus/dbus_test.go
+++ b/system/dbus/dbus_test.go
@@ -11,7 +11,7 @@ import (
 	"testing"
 	"time"
 
-	"hakurei.app/helper"
+	"hakurei.app/internal/helper"
 	"hakurei.app/message"
 	"hakurei.app/system/dbus"
 )
diff --git a/system/dbus/proc.go b/system/dbus/proc.go
index d5716bd..0bd9c6b 100644
--- a/system/dbus/proc.go
+++ b/system/dbus/proc.go
@@ -12,7 +12,7 @@ import (
 	"hakurei.app/container/check"
 	"hakurei.app/container/seccomp"
 	"hakurei.app/container/std"
-	"hakurei.app/helper"
+	"hakurei.app/internal/helper"
 	"hakurei.app/ldd"
 )
 
diff --git a/system/dbus/proc_test.go b/system/dbus/proc_test.go
index a3ce163..544856e 100644
--- a/system/dbus/proc_test.go
+++ b/system/dbus/proc_test.go
@@ -5,7 +5,7 @@ import (
 	"testing"
 
 	"hakurei.app/container"
-	"hakurei.app/helper"
+	"hakurei.app/internal/helper"
 )
 
 func TestMain(m *testing.M) { container.TryArgv0(nil); helper.InternalHelperStub(); os.Exit(m.Run()) }
diff --git a/system/dbus/proxy.go b/system/dbus/proxy.go
index a3a6065..9de49c4 100644
--- a/system/dbus/proxy.go
+++ b/system/dbus/proxy.go
@@ -6,8 +6,8 @@ import (
 	"sync"
 	"syscall"
 
-	"hakurei.app/helper"
 	"hakurei.app/hst"
+	"hakurei.app/internal/helper"
 	"hakurei.app/message"
 )
 
diff --git a/system/dbus_test.go b/system/dbus_test.go
index 0db0780..eedb233 100644
--- a/system/dbus_test.go
+++ b/system/dbus_test.go
@@ -10,8 +10,8 @@ import (
 	"testing"
 
 	"hakurei.app/container/stub"
-	"hakurei.app/helper"
 	"hakurei.app/hst"
+	"hakurei.app/internal/helper"
 	"hakurei.app/system/dbus"
 )