diff --git a/server/internal/usecase/interactor/project.go b/server/internal/usecase/interactor/project.go
index 82428de199..348da4902b 100644
--- a/server/internal/usecase/interactor/project.go
+++ b/server/internal/usecase/interactor/project.go
@@ -3,6 +3,7 @@ package interactor
 import (
 	"context"
 	"errors"
+
 	"github.com/reearth/reearth-cms/server/internal/usecase"
 	"github.com/reearth/reearth-cms/server/internal/usecase/gateway"
 	"github.com/reearth/reearth-cms/server/internal/usecase/interfaces"
@@ -62,7 +63,7 @@ func (i *Project) Create(ctx context.Context, p interfaces.CreateProjectParam, o
 			if len(p.RequestRoles) > 0 {
 				pb = pb.RequestRoles(p.RequestRoles)
 			} else {
-				pb = pb.RequestRoles([]workspace.Role{workspace.RoleOwner, workspace.RoleMaintainer, workspace.RoleWriter, workspace.RoleReader})
+				pb = pb.RequestRoles([]workspace.Role{})
 			}
 
 			proj, err := pb.Build()