diff --git a/mail_notification_custom_subject/i18n/mail_notification_custom_subject.pot b/mail_notification_custom_subject/i18n/mail_notification_custom_subject.pot
index ba3a623..50d826a 100644
--- a/mail_notification_custom_subject/i18n/mail_notification_custom_subject.pot
+++ b/mail_notification_custom_subject/i18n/mail_notification_custom_subject.pot
@@ -4,7 +4,7 @@
 #
 msgid ""
 msgstr ""
-"Project-Id-Version: Odoo Server 14.0\n"
+"Project-Id-Version: Odoo Server 15.0\n"
 "Report-Msgid-Bugs-To: \n"
 "Last-Translator: \n"
 "Language-Team: \n"
@@ -40,7 +40,6 @@ msgstr ""
 
 #. module: mail_notification_custom_subject
 #: model:ir.model.fields,field_description:mail_notification_custom_subject.field_mail_message_custom_subject__display_name
-#: model:ir.model.fields,field_description:mail_notification_custom_subject.field_mail_thread__display_name
 msgid "Display Name"
 msgstr ""
 
@@ -51,13 +50,11 @@ msgstr ""
 
 #. module: mail_notification_custom_subject
 #: model:ir.model.fields,field_description:mail_notification_custom_subject.field_mail_message_custom_subject__id
-#: model:ir.model.fields,field_description:mail_notification_custom_subject.field_mail_thread__id
 msgid "ID"
 msgstr ""
 
 #. module: mail_notification_custom_subject
 #: model:ir.model.fields,field_description:mail_notification_custom_subject.field_mail_message_custom_subject____last_update
-#: model:ir.model.fields,field_description:mail_notification_custom_subject.field_mail_thread____last_update
 msgid "Last Modified on"
 msgstr ""