diff --git a/.github/workflows/back-to-dev.yml b/.github/workflows/back-to-dev.yml
deleted file mode 100644
index abe8a4f..0000000
--- a/.github/workflows/back-to-dev.yml
+++ /dev/null
@@ -1,17 +0,0 @@
-# .github/workflows/release.yml
-name: Back to dev
-on:
-  release:
-    types: [created]
-jobs:
-  phpunit:
-    name: PHPUnit Coverage Tests
-    runs-on: ubuntu-latest
-    container:
-      image: pookmish/drupal8ci:latest
-    steps:
-      - uses: actions/checkout@v3
-      - name: Back to Dev
-        run: |
-          composer global require su-sws/stanford-caravan:dev-8.x-2.x
-          ~/.composer/vendor/bin/sws-caravan back-to-dev $GITHUB_REF $GITHUB_WORKSPACE main
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 7d902f6..0845ddb 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -8,11 +8,21 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    if: github.event.pull_request.merged
     steps:
       - name: Tag
+        id: tag
         uses: K-Phoen/semver-release-action@master
         with:
           release_branch: main
           tag_format: "%major%.%minor%.%patch%"
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - uses: actions/checkout@v3
+        with:
+          ref: 'main'
+      - name: Back to Dev
+        if: ${{ steps.tag.outputs.tag }}
+        run: |
+          composer global require su-sws/stanford-caravan:dev-8.x-2.x
+          ~/.composer/vendor/bin/sws-caravan back-to-dev $GITHUB_REF $GITHUB_WORKSPACE main
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1cc1636..5536fe6 100755
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Stanford Fields
 
+8.2.1
+--------------------------------------------------------------------------------
+_Release Date: 2022-10-19_
+
+- Added access check to hide the "Outline" tab from book module.
+
 8.2.0
 --------------------------------------------------------------------------------
 _Release Date: 2022-10-13_
diff --git a/src/Routing/StanfordFieldsRouteSubscriber.php b/src/Routing/StanfordFieldsRouteSubscriber.php
index a816cd1..aa0dc57 100644
--- a/src/Routing/StanfordFieldsRouteSubscriber.php
+++ b/src/Routing/StanfordFieldsRouteSubscriber.php
@@ -18,6 +18,10 @@ protected function alterRoutes(RouteCollection $collection) {
     if ($route = $collection->get('book.admin_edit')) {
       $route->setDefault('_form', '\Drupal\stanford_fields\Form\StanfordFieldBookAdminEditForm');
     }
+
+    if ($route = $collection->get('entity.node.book_outline_form')) {
+      $route->setRequirement('_custom_access', 'book.manager:checkBookOutlineAccess');
+    }
   }
 
 }
diff --git a/src/Service/StanfordFieldsBookManager.php b/src/Service/StanfordFieldsBookManager.php
index fa1d2e2..b7f4720 100644
--- a/src/Service/StanfordFieldsBookManager.php
+++ b/src/Service/StanfordFieldsBookManager.php
@@ -5,7 +5,10 @@
 use Drupal\book\BookManagerInterface;
 use Drupal\Component\Utility\NestedArray;
 use Drupal\Component\Utility\SortArray;
+use Drupal\Core\Access\AccessResult;
+use Drupal\Core\Access\AccessResultInterface;
 use Drupal\Core\Config\ConfigFactoryInterface;
+use Drupal\Core\Entity\EntityTypeManagerInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Session\AccountInterface;
 use Drupal\Core\StringTranslation\StringTranslationTrait;
@@ -29,8 +32,10 @@ class StanfordFieldsBookManager implements BookManagerInterface {
    *   Config factory service.
    * @param \Symfony\Component\EventDispatcher\EventDispatcherInterface $eventDispatcher
    *   Event dispatcher service.
+   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entityTypeManager
+   *   Entity type manager service.
    */
-  public function __construct(protected BookManagerInterface $bookManager, protected ConfigFactoryInterface $configFactory, protected EventDispatcherInterface $eventDispatcher) {
+  public function __construct(protected BookManagerInterface $bookManager, protected ConfigFactoryInterface $configFactory, protected EventDispatcherInterface $eventDispatcher, protected EntityTypeManagerInterface $entityTypeManager) {
   }
 
   /**
@@ -468,4 +473,23 @@ public function checkNodeIsRemovable(NodeInterface $node) {
     return $this->bookManager->checkNodeIsRemovable($node);
   }
 
+  /**
+   * Check for access on the "Outline" book route.
+   *
+   * @param \Drupal\Core\Session\AccountInterface $account
+   *   Current account.
+   * @param int $node
+   *   Node entity id.
+   *
+   * @return \Drupal\Core\Access\AccessResultReasonInterface
+   *   Resulting access.
+   */
+  public function checkBookOutlineAccess(AccountInterface $account, int $node): AccessResultInterface {
+    $node = $this->entityTypeManager->getStorage('node')->load($node);
+    if ($node && $this->nodeAllowedInBook($node)) {
+      return AccessResult::allowedIfHasPermission($account, 'administer book outlines');
+    }
+    return AccessResult::forbidden();
+  }
+
 }
diff --git a/src/StanfordFieldsServiceProvider.php b/src/StanfordFieldsServiceProvider.php
index a2577fe..ce0fafe 100644
--- a/src/StanfordFieldsServiceProvider.php
+++ b/src/StanfordFieldsServiceProvider.php
@@ -22,6 +22,7 @@ public function register(ContainerBuilder $container) {
         ->addArgument(new Reference('stanford_fields.book_manager.inner'))
         ->addArgument(new Reference('config.factory'))
         ->addArgument(new Reference('event_dispatcher'))
+        ->addArgument(new Reference('entity_type.manager'))
         ->setPublic(FALSE);
     }
   }
diff --git a/stanford_fields.info.yml b/stanford_fields.info.yml
index f10e727..4ae8377 100755
--- a/stanford_fields.info.yml
+++ b/stanford_fields.info.yml
@@ -3,6 +3,6 @@ type: module
 description: 'Field types, widgets and formatters to enhance Drupal and Contrib.'
 core_version_requirement: ^9 || ^10
 package: Stanford
-version: 8.2.0
+version: 8.2.1
 dependencies:
  - drupal:field
diff --git a/tests/src/Kernel/Service/StanfordFieldBookManagerTest.php b/tests/src/Kernel/Service/StanfordFieldBookManagerTest.php
index f6ffaf9..05166be 100644
--- a/tests/src/Kernel/Service/StanfordFieldBookManagerTest.php
+++ b/tests/src/Kernel/Service/StanfordFieldBookManagerTest.php
@@ -5,9 +5,12 @@
 use Drupal\Core\Form\FormState;
 use Drupal\Core\Render\Element;
 use Drupal\Core\Session\AccountProxyInterface;
+use Drupal\Core\Url;
 use Drupal\node\Entity\Node;
 use Drupal\node\NodeInterface;
 use Drupal\Tests\stanford_fields\Kernel\StanfordFieldKernelTestBase;
+use Drupal\user\Entity\User;
+use Drupal\user\RoleInterface;
 
 /**
  * Decorated book manager service tests.
@@ -142,4 +145,37 @@ public function testUpdateOutline() {
     $this->assertEquals(24, $node->book['weight']);
   }
 
+  public function testOutlineAccess() {
+    // Create user 1 first.
+    User::create(['name' => $this->randomMachineName()])->save();
+
+    $account = User::create(['name' => $this->randomMachineName()]);
+
+    $account->save();
+    $account = User::load($account->id());
+    $this->container->get('current_user')->setAccount($account);
+
+    $access = Url::fromRoute('entity.node.book_outline_form', ['node' => 999])
+      ->access($account);
+    $this->assertFalse($access);
+
+    $access = Url::fromRoute('entity.node.book_outline_form', ['node' => $this->book->id()])
+      ->access($account);
+    $this->assertFalse($access);
+
+    user_role_grant_permissions(RoleInterface::AUTHENTICATED_ID, ['administer book outlines']);
+    $access = Url::fromRoute('entity.node.book_outline_form', ['node' => $this->book->id()])
+      ->access($account);
+    $this->assertTrue($access);
+
+    \Drupal::configFactory()->getEditable('book.settings')
+      ->set('allowed_types', ['foobar_page'])
+      ->set('child_type', 'foobar_page')
+      ->save();
+
+    $access = Url::fromRoute('entity.node.book_outline_form', ['node' => $this->book->id()])
+      ->access($account);
+    $this->assertFalse($access);
+  }
+
 }
diff --git a/tests/src/Kernel/StanfordFieldKernelTestBase.php b/tests/src/Kernel/StanfordFieldKernelTestBase.php
index 947919f..fbf817e 100644
--- a/tests/src/Kernel/StanfordFieldKernelTestBase.php
+++ b/tests/src/Kernel/StanfordFieldKernelTestBase.php
@@ -2,7 +2,6 @@
 
 namespace Drupal\Tests\stanford_fields\Kernel;
 
-use Drupal\Core\Session\AccountInterface;
 use Drupal\KernelTests\KernelTestBase;
 use Drupal\node\Entity\NodeType;
 use Drupal\user\Entity\Role;
@@ -38,8 +37,10 @@ protected function setUp(): void {
     $this->installSchema('node', ['node_access']);
 
     NodeType::create(['type' => 'page'])->save();
-    Role::create(['id' => AccountInterface::ANONYMOUS_ROLE])->save();
+    Role::create(['id' => RoleInterface::ANONYMOUS_ID])->save();
+    Role::create(['id' => RoleInterface::AUTHENTICATED_ID])->save();
     user_role_grant_permissions(RoleInterface::ANONYMOUS_ID, ['access content']);
+    user_role_grant_permissions(RoleInterface::AUTHENTICATED_ID, ['access content']);
   }
 
 }