diff --git a/document_page_approval/models/document_page.py b/document_page_approval/models/document_page.py
index c8a321134a9..ccfcaa8795a 100644
--- a/document_page_approval/models/document_page.py
+++ b/document_page_approval/models/document_page.py
@@ -135,8 +135,9 @@ def _create_history(self, vals):
 
     def action_changes_pending_approval(self):
         self.ensure_one()
-        action = self.env.ref("document_page_approval.action_change_requests")
-        action = action.sudo().read()[0]
+        action = self.env["ir.actions.act_window"]._for_xml_id(
+            "document_page_approval.action_change_requests"
+        )
         context = literal_eval(action["context"])
         context["search_default_page_id"] = self.id
         context["default_page_id"] = self.id
diff --git a/document_page_approval/security/ir.model.access.csv b/document_page_approval/security/ir.model.access.csv
deleted file mode 100644
index 97dd8b917b8..00000000000
--- a/document_page_approval/security/ir.model.access.csv
+++ /dev/null
@@ -1 +0,0 @@
-id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
diff --git a/document_page_approval/views/document_page_approval.xml b/document_page_approval/views/document_page_approval.xml
index 8f88f8ef489..4451403e8d6 100644
--- a/document_page_approval/views/document_page_approval.xml
+++ b/document_page_approval/views/document_page_approval.xml
@@ -14,7 +14,7 @@
                         type="object"
                         string="Send to Review"
                         class="oe_highlight"
-                        invisible="not is_approval_required or not am_i_owner or state not in 'draft'"
+                        invisible="not is_approval_required or not am_i_owner or state != 'draft'"
                     />
                     <!-- approve if i am approver -->
                     <button
@@ -44,14 +44,14 @@
                         name="action_draft"
                         type="object"
                         string="Back to draft"
-                        invisible="(not am_i_owner or not am_i_approver) and (state not in 'cancelled')"
+                        invisible="(not am_i_owner or not am_i_approver) and (state != 'cancelled')"
                     />
                     <!-- cancel & reopen, if i am owner or approver -->
                     <button
                         name="action_draft"
                         type="object"
                         string="Back to draft"
-                        invisible="(not am_i_owner or not am_i_approver) and (state not in 'to approve')"
+                        invisible="(not am_i_owner or not am_i_approver) and (state != 'to approve')"
                     />
                     <field name="am_i_owner" invisible="1" />
                     <field name="am_i_approver" invisible="1" />