diff --git a/l10n_nl_account_tax_unece/migrations/14.0.1.1.0/post-migration.py b/l10n_nl_account_tax_unece/migrations/14.0.1.1.0/post-migration.py
new file mode 100644
index 000000000..cebccd10e
--- /dev/null
+++ b/l10n_nl_account_tax_unece/migrations/14.0.1.1.0/post-migration.py
@@ -0,0 +1,33 @@
+# 2021 Bosd
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+"""
+The unece tags have been set with the no update tag.
+Use openupgradelib to force load the changes.
+"""
+
+
+import logging
+from odoo import SUPERUSER_ID, api
+
+_logger = logging.getLogger(__name__)
+try:
+    from openupgradelib import openupgrade
+except ImportError:
+    openupgrade = None
+
+
+def set_unece_on_taxes(cr):
+    print("POST INSTALL HOOK CALLED")
+    with api.Environment.manage():
+        env = api.Environment(cr, SUPERUSER_ID, {})
+        for company in env["res.company"].search([]):
+            company._l10n_nl_set_unece_on_taxes()
+
+def migrate(cr, version):
+    if openupgrade is None:
+        _logger.warning("OpenUpgradeLib is not found, can't update l10n_nl_account_tax_unece tags")
+        return
+    _logger.warning("OpenUpgradeLib is going to upgrade nl l10n_nl_account_tax_unece")
+    openupgrade.load_data(cr, "l10n_nl_account_tax_unece", "data/account_tax_template.xml", mode="init")
+    set_unece_on_taxes(cr)