diff --git a/account_export_csv/__manifest__.py b/account_export_csv/__manifest__.py
index 4f939c0c..dd3dcdc7 100644
--- a/account_export_csv/__manifest__.py
+++ b/account_export_csv/__manifest__.py
@@ -1,11 +1,12 @@
 # Copyright 2013 Camptocamp SA
 # Copyright 2017 ACSONE SA/NV
+# Copyright 2017 Akretion
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
 {
     "name": "Account Export CSV",
     "summary": "Adds accounting CSV export",
-    "version": "12.0.1.2.0",
+    "version": "14.0.0.0.1",
     "depends": [
         "account",
         "date_range",
@@ -14,6 +15,7 @@
     "website": "https://github.com/OCA/account-financial-reporting",
     "license": "AGPL-3",
     "data": [
+        "security/ir.model.access.csv",
         "wizard/account_export_csv_view.xml",
     ],
     "installable": True,
diff --git a/account_export_csv/security/.~lock.ir.model.access.csv# b/account_export_csv/security/.~lock.ir.model.access.csv#
new file mode 100644
index 00000000..24dcf947
--- /dev/null
+++ b/account_export_csv/security/.~lock.ir.model.access.csv#
@@ -0,0 +1 @@
+Kévin Roche,kevin,kevin-Ubuntu-7B16,12.02.2021 22:22,file:///home/kevin/.config/libreoffice/4;
\ No newline at end of file
diff --git a/account_export_csv/security/ir.model.access.csv b/account_export_csv/security/ir.model.access.csv
new file mode 100644
index 00000000..f56a01d0
--- /dev/null
+++ b/account_export_csv/security/ir.model.access.csv
@@ -0,0 +1,2 @@
+id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
+access_account_csv_export,access_account_csv_export,model_account_csv_export,base.group_user,1,1,1,1
diff --git a/account_export_csv/tests/test_account_export_csv.py b/account_export_csv/tests/test_account_export_csv.py
index 77f885a0..26338c83 100644
--- a/account_export_csv/tests/test_account_export_csv.py
+++ b/account_export_csv/tests/test_account_export_csv.py
@@ -45,7 +45,7 @@ class TestAccountExportCsv(TransactionCase):
             }
         )
         report_wizard.action_manual_export_journal_entries()
-        res = base64.decodestring(report_wizard.data)
+        res = base64.decodebytes(report_wizard.data)
         line_number = self.env["account.move.line"].search_count([])
         # check the number of lines in file: include header + EOF line
         self.assertEqual(len(res.decode().split("\r\n")), line_number + 2)
diff --git a/account_export_csv/wizard/account_export_csv.py b/account_export_csv/wizard/account_export_csv.py
index 57c7da2a..a3b7d94f 100644
--- a/account_export_csv/wizard/account_export_csv.py
+++ b/account_export_csv/wizard/account_export_csv.py
@@ -106,7 +106,7 @@ class AccountCSVExport(models.TransientModel):
             writer = AccountingWriter(file_data)
             writer.writerows(rows)
             file_value = file_data.getvalue()
-            self.write({"data": base64.encodestring(file_value)})
+            self.write({"data": base64.encodebytes(file_value)})
         finally:
             file_data.close()
         return {
@@ -162,7 +162,7 @@ class AccountCSVExport(models.TransientModel):
             writer = AccountingWriter(file_data)
             writer.writerows(rows)
             file_value = file_data.getvalue()
-            self.write({"data": base64.encodestring(file_value)})
+            self.write({"data": base64.encodebytes(file_value)})
         finally:
             file_data.close()
         return {
@@ -223,17 +223,14 @@ class AccountCSVExport(models.TransientModel):
         Memory
         We also write the data to the wizard with SQL query as write seems
         to use too much memory as well.
-
         Those improvements permitted to improve the export from a 100k line to
         200k lines
         with default `limit_memory_hard = 805306368` (768MB) with more lines,
         you might encounter a MemoryError when trying to download the file even
         if it has been generated.
-
         To be able to export bigger volume of data, it is advised to set
         limit_memory_hard to 2097152000 (2 GB) to generate the file and let
         Odoo load it in the wizard when trying to download it.
-
         Tested with up to a generation of 700k entry lines
         """
         self.ensure_one()
@@ -245,13 +242,14 @@ class AccountCSVExport(models.TransientModel):
                 file_data.seek(0)
                 base64.encode(file_data, base64_data)
                 base64_data.seek(0)
-                self.env.cr.execute(
-                    """
-                UPDATE account_csv_export
-                SET data = %s
-                WHERE id = %s""",
-                    (base64_data.read(), self.id),
-                )
+                self.write({"data": base64_data.read()})
+                # self.env.cr.execute(
+                #     """
+                # UPDATE account_csv_export
+                # SET data = %s
+                # WHERE id = %s""",
+                #     (base64_data.read(), self.id),
+                # )
         return {
             "type": "ir.actions.act_window",
             "res_model": "account.csv.export",