diff --git a/appstore/validator.go b/appstore/validator.go
index dee06bc..698506f 100644
--- a/appstore/validator.go
+++ b/appstore/validator.go
@@ -70,6 +70,8 @@ func HandleError(status int) error {
 		e = ErrReceiptIsForTest
 	case 21008:
 		e = ErrReceiptIsForProduction
+	case 21009:
+		e = ErrInternalDataAccessError
 	case 21010:
 		e = ErrReceiptUnauthorized
 	default:
diff --git a/appstore/validator_test.go b/appstore/validator_test.go
index 2981cb9..51c6a46 100644
--- a/appstore/validator_test.go
+++ b/appstore/validator_test.go
@@ -58,6 +58,11 @@ func TestHandleError(t *testing.T) {
 			in:   21008,
 			out:  ErrReceiptIsForProduction,
 		},
+		{
+			name: "status 21009",
+			in:   21009,
+			out:  ErrInternalDataAccessError,
+		},
 		{
 			name: "status 21010",
 			in:   21010,