diff --git a/agreement_project/README.rst b/agreement_project/README.rst
index bdee9ca6..9320be6e 100644
--- a/agreement_project/README.rst
+++ b/agreement_project/README.rst
@@ -14,13 +14,13 @@ Agreement - Project
     :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
     :alt: License: AGPL-3
 .. |badge3| image:: https://img.shields.io/badge/github-OCA%2Fcontract-lightgray.png?logo=github
-    :target: https://github.com/OCA/contract/tree/11.0/agreement_project
+    :target: https://github.com/OCA/contract/tree/12.0/agreement_project
     :alt: OCA/contract
 .. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
-    :target: https://translation.odoo-community.org/projects/contract-11-0/contract-11-0-agreement_project
+    :target: https://translation.odoo-community.org/projects/contract-12-0/contract-12-0-agreement_project
     :alt: Translate me on Weblate
 .. |badge5| image:: https://img.shields.io/badge/runbot-Try%20me-875A7B.png
-    :target: https://runbot.odoo-community.org/runbot/110/11.0
+    :target: https://runbot.odoo-community.org/runbot/110/12.0
     :alt: Try me on Runbot
 
 |badge1| |badge2| |badge3| |badge4| |badge5| 
@@ -107,6 +107,6 @@ Current `maintainers <https://odoo-community.org/page/maintainer-role>`__:
 
 |maintainer-smangukiya| |maintainer-max3903| 
 
-This module is part of the `OCA/contract <https://github.com/OCA/contract/tree/11.0/agreement_project>`_ project on GitHub.
+This module is part of the `OCA/contract <https://github.com/OCA/contract/tree/12.0/agreement_project>`_ project on GitHub.
 
 You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.
diff --git a/agreement_project/models/agreement.py b/agreement_project/models/agreement.py
index d88991fe..9c6311b3 100644
--- a/agreement_project/models/agreement.py
+++ b/agreement_project/models/agreement.py
@@ -12,10 +12,7 @@ class Agreement(models.Model):
 
     @api.multi
     def _compute_task_count(self):
-        data = self.env['project.task'].read_group(
-            [('agreement_id', 'in', self.ids)],
-            ['agreement_id'], ['agreement_id'])
-        count_data = dict((item['agreement_id'][0],
-                           item['agreement_id_count']) for item in data)
-        for agreement in self:
-            agreement.task_count = count_data.get(agreement.id, 0)
+        for ag in self:
+            count = self.env['project.task'].search_count(
+                [('agreement_id', 'in', self.ids)])
+            ag.task_count = count