diff --git a/email_headers/__manifest__.py b/email_headers/__manifest__.py
index e8768e4..fc8700e 100644
--- a/email_headers/__manifest__.py
+++ b/email_headers/__manifest__.py
@@ -21,7 +21,7 @@
 # noinspection PyStatementEffect
 {
     "name": "Robust Mails",
-    "version": "13.0.1.2.0",
+    "version": "14.0.1.2.0",
     "license": "AGPL-3",
     "summary": """
     Adds fields on outgoing email server that allows you to better control the
diff --git a/email_headers/migrations/12.0.1.2.0/post-migration.py b/email_headers/migrations/12.0.1.2.0/post-migration.py
deleted file mode 100644
index e6fb436..0000000
--- a/email_headers/migrations/12.0.1.2.0/post-migration.py
+++ /dev/null
@@ -1,9 +0,0 @@
-def migrate(cr, version):
-    if not version:
-        return
-
-    cr.execute(
-        "UPDATE ir_mail_server "
-        "SET reply_to_method = 'alias' "
-        "WHERE reply_to_alias IS TRUE"
-    )