diff --git a/project_task_analytic_lines/__manifest__.py b/project_task_analytic_lines/__manifest__.py
index b851e2f7..0e9cadf3 100644
--- a/project_task_analytic_lines/__manifest__.py
+++ b/project_task_analytic_lines/__manifest__.py
@@ -3,7 +3,7 @@
 
 {
     'name': 'Project Task Analytic Lines',
-    'version': '14.0.1.3.0',
+    'version': '14.0.1.2.1',
     'author': 'Numigi',
     'maintainer': 'Numigi',
     'website': 'https://numigi.com/',
diff --git a/project_task_analytic_lines/migrations/14.0.1.3.0/post-migration.py b/project_task_analytic_lines/migrations/14.0.1.3.0/post-migration.py
deleted file mode 100644
index 9f1ed868..00000000
--- a/project_task_analytic_lines/migrations/14.0.1.3.0/post-migration.py
+++ /dev/null
@@ -1,39 +0,0 @@
-# © Numigi (tm) and all its contributors (https://numigi.com/r/home)
-# License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl).
-
-import logging
-
-_logger = logging.getLogger(__name__)
-
-
-def migrate(cr, version):
-    """
-    Post-migration script to update the project_id on existing analytic lines.
-    It uses raw SQL for better performance on large tables.
-    """
-    if not version:
-        return
-
-    _logger.info("Starting the update of project_id on analytic lines...")
-
-    # Set project_id from task_id if available
-    cr.execute("""
-        UPDATE account_analytic_line aal
-        SET project_id = pt.project_id
-        FROM project_task pt
-        WHERE aal.project_id IS NULL
-          AND aal.task_id = pt.id
-          AND pt.project_id IS NOT NULL
-    """)
-
-    # Set project_id from origin_task_id if task_id did not provide a project
-    cr.execute("""
-        UPDATE account_analytic_line aal
-        SET project_id = pt.project_id
-        FROM project_task pt
-        WHERE aal.project_id IS NULL
-          AND aal.origin_task_id = pt.id
-          AND pt.project_id IS NOT NULL
-    """)
-
-    _logger.info("Analytic lines successfully updated.")
diff --git a/project_task_analytic_lines/models/account_analytic_line.py b/project_task_analytic_lines/models/account_analytic_line.py
index db4d1ee7..817d145d 100644
--- a/project_task_analytic_lines/models/account_analytic_line.py
+++ b/project_task_analytic_lines/models/account_analytic_line.py
@@ -15,15 +15,6 @@ class AnalyticLine(models.Model):
         "project.task", "Origin Task", ondelete="restrict", index=True
     )
 
-    @api.depends('task_id', 'task_id.project_id', 'origin_task_id',
-                 'origin_task_id.project_id')
-    def _compute_project_id(self):
-        for line in self.filtered(lambda line: not line.project_id):
-            if line.task_id.project_id:
-                line.project_id = line.task_id.project_id
-            if not line.task_id.project_id and line.origin_task_id.project_id:
-                line.project_id = line.origin_task_id.project_id
-
     @api.model
     def search(self, args, offset=0, limit=None, order=None, count=False):
         args = args or []
diff --git a/project_task_analytic_lines/tests/common.py b/project_task_analytic_lines/tests/common.py
index 0cbf7dea..4a434960 100644
--- a/project_task_analytic_lines/tests/common.py
+++ b/project_task_analytic_lines/tests/common.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # © Numigi (tm) and all its contributors (https://numigi.com/r/home)
 # License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl).
 
@@ -15,11 +14,7 @@ def setUpClass(cls):
                 "login": "account_user",
                 "email": "account_user@test.com",
                 "groups_id": [
-                    (4, cls.env.ref("account.group_account_invoice").id),
-                    (4, cls.env.ref("analytic.group_analytic_accounting").id),
-                    (4, cls.env.ref("project.group_project_manager").id),
-                    (4, cls.env.ref("hr_timesheet.group_timesheet_manager").id),
-                ],
+                    (4, cls.env.ref("account.group_account_invoice").id)],
             }
         )
 
@@ -115,5 +110,4 @@ def _get_invoice_line_vals(cls, **kwargs):
 
     def _validate_invoice(self):
         self.invoice.invoice_date = '2023-01-01'
-        # In Odoo 14, use .with_user(user) instead of the deprecated .sudo(user)
-        self.invoice.with_user(self.account_user).action_post()
+        self.invoice.sudo(self.account_user).action_post()