diff --git a/apply_patches.sh b/apply_patches.sh
index c771679..be5f27c 100755
--- a/apply_patches.sh
+++ b/apply_patches.sh
@@ -42,7 +42,16 @@ pt_vendor ()
     DEST=$DESTDIR/vendor/electronic_invoice_dian/
     OPTIONS="--directory=$DEST --strip=1"
 
-    patch $OPTIONS < patches/20210922_electronic-invoice-dian_changes-after-1-8.patch
+    #patch $OPTIONS < patches/20210922_electronic-invoice-dian_changes-after-1-8.patch
+
+    SRC=$PWD
+    DEST=$DESTDIR/vendor/
+    OPTIONS="-p1 --verbose"
+
+    pushd $DEST
+    git apply $OPTIONS $SRC/patches/20211209_hr-avancys_delete-without-sql-in-holiday-book.patch
+    popd
+
 }
 
 pt_special ()
diff --git a/patches/20211209_hr-avancys_delete-without-sql-in-holiday-book.patch b/patches/20211209_hr-avancys_delete-without-sql-in-holiday-book.patch
new file mode 100644
index 0000000..950fa59
--- /dev/null
+++ b/patches/20211209_hr-avancys_delete-without-sql-in-holiday-book.patch
@@ -0,0 +1,16 @@
+diff --git a/hr_avancys/models/hr_contract/hr_holiday_book.py b/hr_avancys/models/hr_contract/hr_holiday_book.py
+index d1b36c9..5e843d0 100644
+--- a/hr_avancys/models/hr_contract/hr_holiday_book.py
++++ b/hr_avancys/models/hr_contract/hr_holiday_book.py
+@@ -79,7 +79,9 @@ class HrHolidayBook(models.Model):
+     )
+ 
+     def delete_lines(self, contract_id):
+-        self._cr.execute("DELETE FROM hr_holiday_book WHERE contract_id = {id} and (manual = 'f' or manual is null)".format(id=contract_id.id))
++        holiday_book_ids = contract_id.holiday_book_ids
++        holiday_book_ids = holiday_book_ids.filtered(lambda hb: hb.manual is not True)
++        holiday_book_ids.unlink()
+ 
+     def check_date_for_work(self, contract_id, date):
+         days_work = list(set([int(x.dayofweek) for x in contract_id.resource_calendar_id.attendance_ids]))
+