diff --git a/mass_mailing_custom_unsubscribe_event/i18n/mass_mailing_custom_unsubscribe_event.pot b/mass_mailing_custom_unsubscribe_event/i18n/mass_mailing_custom_unsubscribe_event.pot
index e0bbb2f1a..667d918d0 100644
--- a/mass_mailing_custom_unsubscribe_event/i18n/mass_mailing_custom_unsubscribe_event.pot
+++ b/mass_mailing_custom_unsubscribe_event/i18n/mass_mailing_custom_unsubscribe_event.pot
@@ -4,7 +4,7 @@
 #
 msgid ""
 msgstr ""
-"Project-Id-Version: Odoo Server 13.0\n"
+"Project-Id-Version: Odoo Server 15.0\n"
 "Report-Msgid-Bugs-To: \n"
 "Last-Translator: \n"
 "Language-Team: \n"