diff --git a/internal/service/application.go b/internal/service/application.go
index 21904756..267a09e7 100644
--- a/internal/service/application.go
+++ b/internal/service/application.go
@@ -219,7 +219,7 @@ func (s *Service) UpdateApplicationStatus(
 			application.Status.String(), inputs.Status.String())
 		return nil, nil, NewBadInputError(message)
 	}
-	if s.isAccountManagerRevertingAcceptedApplication(user, application.Status, inputs.Status) {
+	if s.isAccountManagerRevertingApprovedApplication(user, application.Status, inputs.Status) {
 		targets, err := s.repository.GetApplicationTargets(ctx, applicationID)
 		if err != nil {
 			logger.Error("failed to get application targets from repository", zap.Error(err))
@@ -262,11 +262,11 @@ func (s *Service) isAccountManager(user *User) bool {
 
 func (s *Service) isAbleNoCommentUpdateStatus(currentStatus, newStatus Status) bool {
 	switch currentStatus {
-	case Submitted:
-		return newStatus != FixRequired && newStatus != Rejected
-	case Accepted:
-		return newStatus != Submitted
-	case FixRequired, Completed, Rejected:
+	case PendingReview:
+		return newStatus != ChangeRequested && newStatus != Rejected
+	case Approved:
+		return newStatus != PendingReview
+	case ChangeRequested, PaymentFinished, Rejected:
 		return true
 	default:
 		return false
@@ -274,19 +274,19 @@ func (s *Service) isAbleNoCommentUpdateStatus(currentStatus, newStatus Status) b
 }
 
 func (s *Service) isAbleAccountManagerUpdateStatus(currentStatus, newStatus Status) bool {
-	return newStatus == Rejected && currentStatus == Submitted ||
-		newStatus == Submitted && currentStatus == FixRequired ||
-		newStatus == Accepted && currentStatus == Submitted ||
-		newStatus == Submitted && currentStatus == Accepted ||
-		newStatus == FixRequired && currentStatus == Submitted
+	return newStatus == Rejected && currentStatus == PendingReview ||
+		newStatus == PendingReview && currentStatus == ChangeRequested ||
+		newStatus == Approved && currentStatus == PendingReview ||
+		newStatus == PendingReview && currentStatus == Approved ||
+		newStatus == ChangeRequested && currentStatus == PendingReview
 }
 
 func (s *Service) isAbleCreatorChangeStatus(currentStatus, newStatus Status) bool {
-	return currentStatus == FixRequired && newStatus == Submitted
+	return currentStatus == ChangeRequested && newStatus == PendingReview
 }
 
-func (s *Service) isAccountManagerRevertingAcceptedApplication(
+func (s *Service) isAccountManagerRevertingApprovedApplication(
 	user *User, currentStatus, newStatus Status,
 ) bool {
-	return user.AccountManager && currentStatus == Accepted && newStatus == Submitted
+	return user.AccountManager && currentStatus == Approved && newStatus == PendingReview
 }
diff --git a/internal/service/application_status.go b/internal/service/application_status.go
index 4da37584..a52afc1c 100644
--- a/internal/service/application_status.go
+++ b/internal/service/application_status.go
@@ -14,23 +14,23 @@ type Status int
 
 const (
 	_ Status = iota
-	Submitted
-	FixRequired
-	Accepted
-	Completed
+	PendingReview
+	ChangeRequested
+	Approved
+	PaymentFinished
 	Rejected
 )
 
 func (s Status) String() string {
 	switch s {
-	case Submitted:
-		return "submitted"
-	case FixRequired:
-		return "fix_required"
-	case Accepted:
-		return "accepted"
-	case Completed:
-		return "completed"
+	case PendingReview:
+		return "pending_review"
+	case ChangeRequested:
+		return "change_requested"
+	case Approved:
+		return "approved"
+	case PaymentFinished:
+		return "payment_finished"
 	case Rejected:
 		return "rejected"
 	default:
@@ -42,14 +42,14 @@ func (s Status) String() string {
 // dbにstringいれる今の実装だとMarshalJson入らなそう。
 func (s Status) MarshalJSON() ([]byte, error) {
 	switch s {
-	case Submitted:
-		return json.Marshal("submitted")
-	case FixRequired:
-		return json.Marshal("fix_required")
-	case Accepted:
-		return json.Marshal("accepted")
-	case Completed:
-		return json.Marshal("completed")
+	case PendingReview:
+		return json.Marshal("pending_review")
+	case ChangeRequested:
+		return json.Marshal("change_requested")
+	case Approved:
+		return json.Marshal("approved")
+	case PaymentFinished:
+		return json.Marshal("payment_finished")
 	case Rejected:
 		return json.Marshal("rejected")
 	default:
@@ -65,14 +65,14 @@ func (s *Status) UnmarshalJSON(data []byte) error {
 
 	var st Status
 	switch str {
-	case "submitted":
-		st = Submitted
-	case "fix_required":
-		st = FixRequired
-	case "accepted":
-		st = Accepted
-	case "completed":
-		st = Completed
+	case "pending_review":
+		st = PendingReview
+	case "change_requested":
+		st = ChangeRequested
+	case "approved":
+		st = Approved
+	case "payment_finished":
+		st = PaymentFinished
 	case "rejected":
 		st = Rejected
 	default:
diff --git a/internal/service/file.go b/internal/service/file.go
index a1080615..e12bfc86 100644
--- a/internal/service/file.go
+++ b/internal/service/file.go
@@ -31,7 +31,7 @@ type File struct {
 	CreatedAt time.Time
 }
 
-var acceptedMimeTypes = map[string]bool{
+var ApprovedMimeTypes = map[string]bool{
 	"image/jpeg":         true,
 	"image/png":          true,
 	"image/gif":          true,
@@ -98,7 +98,7 @@ func (s *Service) WriteFile(
 	user *User, applicationID uuid.UUID,
 	name string, mimetype string, content io.Reader,
 ) (*File, error) {
-	if !acceptedMimeTypes[mimetype] {
+	if !ApprovedMimeTypes[mimetype] {
 		return nil, NewBadInputError("unsupported mime type")
 	}
 	logger := logging.GetLogger(ctx)