diff --git a/l10n_us_hr_payroll/__manifest__.py b/l10n_us_hr_payroll/__manifest__.py
index ded975ec..e7117ea4 100755
--- a/l10n_us_hr_payroll/__manifest__.py
+++ b/l10n_us_hr_payroll/__manifest__.py
@@ -2,7 +2,11 @@
     'name': 'USA - Payroll',
     'author': 'Hibou Corp. <hello@hibou.io>',
     'category': 'Localization',
-    'depends': ['hr_payroll', 'hr_payroll_rate'],
+    'depends': [
+        'hr_payroll',
+        'hr_payroll_rate',
+        'hibou_professional',
+    ],
     'version': '12.0.2020.1.0',
     'description': """
 USA Payroll Rules.
diff --git a/l10n_us_hr_payroll/models/__init__.py b/l10n_us_hr_payroll/models/__init__.py
index c208ca19..887f83b8 100644
--- a/l10n_us_hr_payroll/models/__init__.py
+++ b/l10n_us_hr_payroll/models/__init__.py
@@ -3,4 +3,5 @@
 from . import hr_contract
 from . import hr_payslip
 from . import hr_salary_rule
+from . import update
 from . import us_payroll_config
diff --git a/l10n_us_hr_payroll/models/hr_salary_rule.py b/l10n_us_hr_payroll/models/hr_salary_rule.py
index a98029ec..64f0ce8e 100644
--- a/l10n_us_hr_payroll/models/hr_salary_rule.py
+++ b/l10n_us_hr_payroll/models/hr_salary_rule.py
@@ -1,3 +1,5 @@
+# Part of Hibou Suite Professional. See LICENSE_PROFESSIONAL file for full copyright and licensing details.
+
 from odoo import api, fields, models, _
 from odoo.tools.safe_eval import safe_eval
 from odoo.exceptions import UserError
diff --git a/l10n_us_hr_payroll/models/update.py b/l10n_us_hr_payroll/models/update.py
new file mode 100644
index 00000000..2184abef
--- /dev/null
+++ b/l10n_us_hr_payroll/models/update.py
@@ -0,0 +1,26 @@
+# Part of Hibou Suite Professional. See LICENSE_PROFESSIONAL file for full copyright and licensing details.
+
+import datetime
+from odoo import fields, models
+
+
+class PublisherWarrantyContract(models.AbstractModel):
+    _inherit = 'publisher_warranty.contract'
+
+    def _get_hibou_modules(self):
+        modules = super(PublisherWarrantyContract, self)._get_hibou_modules()
+        try:
+            today_date = fields.Date.today()
+            last_thirty_date = today_date - datetime.timedelta(days=30)
+            today = fields.Date.to_string(today_date + datetime.timedelta(days=1))  # Dates vs Datetimes, pad out a day
+            last_thirty = fields.Date.to_string(last_thirty_date)
+            self.env.cr.execute(
+                'SELECT COUNT(DISTINCT(employee_id)) FROM hr_payslip WHERE create_date BETWEEN %s AND %s',
+                (last_thirty, today))
+            employee_count = self.env.cr.fetchone()[0] or 0
+            modules.update({
+                'l10n_us_hr_payroll': employee_count,
+            })
+        except:
+            pass
+        return modules