diff --git a/OrcidProfilePlugin.php b/OrcidProfilePlugin.php
index ec27b7d1..5efab092 100755
--- a/OrcidProfilePlugin.php
+++ b/OrcidProfilePlugin.php
@@ -137,78 +137,42 @@ public function register($category, $path, $mainContextId = null)
 
                 $schema->properties->orcidSandbox = (object)[
                     'type' => 'string',
-                    'apiSummary' => true,
+                    'writeOnly' => 'true',
                     'validation' => ['nullable']
                 ];
                 $schema->properties->orcidAccessToken = (object)[
                     'type' => 'string',
-                    'apiSummary' => true,
+                    'writeOnly' => 'true',
                     'validation' => ['nullable']
                 ];
                 $schema->properties->orcidAccessScope = (object)[
                     'type' => 'string',
-                    'apiSummary' => true,
+                    'writeOnly' => 'true',
                     'validation' => ['nullable']
                 ];
                 $schema->properties->orcidRefreshToken = (object)[
                     'type' => 'string',
-                    'apiSummary' => true,
+                    'writeOnly' => 'true',
                     'validation' => ['nullable']
                 ];
                 $schema->properties->orcidAccessExpiresOn = (object)[
                     'type' => 'string',
-                    'apiSummary' => true,
+                    'writeOnly' => 'true',
                     'validation' => ['nullable']
                 ];
                 $schema->properties->orcidAccessDenied = (object)[
                     'type' => 'string',
-                    'apiSummary' => true,
+                    'writeOnly' => 'true',
                     'validation' => ['nullable']
                 ];
                 $schema->properties->orcidEmailToken = (object)[
                     'type' => 'string',
-                    'apiSummary' => true,
+                    'writeOnly' => 'true',
                     'validation' => ['nullable']
                 ];
                 $schema->properties->orcidWorkPutCode = (object)[
                     'type' => 'string',
-                    'apiSummary' => true,
-                    'validation' => ['nullable']
-                ];
-            });
-
-            // Add more ORCiD fields to user Schema
-            Hook::add('Schema::get::user', function ($hookName, $args) {
-                $schema = &$args[0];
-
-                $schema->properties->orcidAccessToken = (object)[
-                    'type' => 'string',
-                    'apiSummary' => true,
-                    'validation' => ['nullable']
-                ];
-                $schema->properties->orcidAccessScope = (object)[
-                    'type' => 'string',
-                    'apiSummary' => true,
-                    'validation' => ['nullable']
-                ];
-                $schema->properties->orcidRefreshToken = (object)[
-                    'type' => 'string',
-                    'apiSummary' => true,
-                    'validation' => ['nullable']
-                ];
-                $schema->properties->orcidAccessExpiresOn = (object)[
-                    'type' => 'string',
-                    'apiSummary' => true,
-                    'validation' => ['nullable']
-                ];
-                $schema->properties->orcidAccessDenied = (object)[
-                    'type' => 'string',
-                    'apiSummary' => true,
-                    'validation' => ['nullable']
-                ];
-                $schema->properties->orcidReviewPutCode = (object)[
-                    'type' => 'string',
-                    'apiSummary' => true,
+                    'writeOnly' => 'true',
                     'validation' => ['nullable']
                 ];
             });