diff --git a/.github/workflows/phpspec-task.yml b/.github/workflows/phpspec-task.yml
index ed70ba5..f2a2f2e 100644
--- a/.github/workflows/phpspec-task.yml
+++ b/.github/workflows/phpspec-task.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ${{ matrix.operating-system }}
     strategy:
       matrix:
-        operating-system: [ ubuntu-18.04 ]
+        operating-system: [ ubuntu-20.04 ]
         php-versions: [ '7.4', '8.0.12', '8.1', '8.2' ]
     name: Evaluate Behavior, ${{ matrix.php-versions }} on ${{ matrix.operating-system }}
     steps:
diff --git a/README.md b/README.md
index 46f48ab..eea2e5a 100644
--- a/README.md
+++ b/README.md
@@ -136,6 +136,20 @@ Configuring guards is very simple. Your module's config would look like so:
                                     'list' => [ 'user' ], // role 'user' can access 'listAction' on AdminController
                                 ],
                             ],
+                            \Application\Controller\ComplexController::class => [
+                                'default' => ['user'],
+                                'actions' => [  // action-level guards
+                                    'save' => [
+                                        AccessService::GUARD_ACTION => 'save',      // you can lean on action/resource rules as well
+                                        AccessService::GUARD_RESOURCE => 'complex', // which call 'isAllowed' on AccessService
+                                    ],
+                                    'delete' => [
+                                        AccessService::GUARD_ROLE => 'admin',       // it is also possible to override the role requirement
+                                        AccessService::GUARD_ACTION => 'save',
+                                        AccessService::GUARD_RESOURCE => 'complex',
+                                    ],
+                                ],
+                            ],
                         ],
                     ],
                 ],
diff --git a/bundle/Spec/CirclicalUser/Service/AccessServiceSpec.php b/bundle/Spec/CirclicalUser/Service/AccessServiceSpec.php
index d2ca5a1..89e25a5 100644
--- a/bundle/Spec/CirclicalUser/Service/AccessServiceSpec.php
+++ b/bundle/Spec/CirclicalUser/Service/AccessServiceSpec.php
@@ -20,6 +20,7 @@
 use CirclicalUser\Provider\GroupPermissionInterface;
 use CirclicalUser\Provider\UserPermissionProviderInterface;
 use CirclicalUser\Provider\RoleProviderInterface;
+use CirclicalUser\Service\AccessService;
 use PhpSpec\ObjectBehavior;
 use Prophecy\Argument;
 
@@ -39,6 +40,7 @@ function let(
         UserPermissionInterface $userRule1,
         UserPermissionInterface $userRule2,
         UserPermissionInterface $userRule3,
+        UserPermissionInterface $userRule4,
         ResourceInterface $resourceObject,
         GroupPermissionInterface $groupActionRule,
         UserMapper $userMapper,
@@ -115,6 +117,13 @@ function let(
         $userRule3->can(Argument::type('string'))->willReturn(false);
         $userRule3->can('bar')->willReturn(true);
 
+        $userRule4->getActions()->willReturn(['save']);
+        $userRule4->getResourceClass()->willReturn('string');
+        $userRule4->getResourceId()->willReturn('complex');
+        $userRule4->getUser()->willReturn($user);
+        $userRule4->can(Argument::type('string'))->willReturn(false);
+        $userRule4->can('save')->willReturn(true);
+
         $resourceObject->getClass()->willReturn("ResourceObject");
         $resourceObject->getId()->willReturn("1234");
 
@@ -125,8 +134,10 @@ function let(
         $groupActionRule->can(Argument::type('string'))->willReturn(false);
         $groupActionRule->can('bar')->willReturn(true);
 
+
         $userRules->getUserPermission(Argument::type('string'), Argument::any())->willReturn(null);
         $userRules->getUserPermission('beer', $admin)->willReturn($userRule1);
+        $userRules->getUserPermission('complex', $user)->willReturn($userRule4);
         $userRules->create($user, 'string', 'beer', ['buy'])->willReturn($userRule2);
         $userRules->save($userRule2)->willReturn(null);
         $userRules->getResourceUserPermission($resourceObject, $user)->willReturn($userRule3);
@@ -136,6 +147,7 @@ function let(
         $userRules->getUserPermission('badresult', $user)->willReturn($someObject);
 
         $groupRules->getPermissions('beer')->willReturn([$rule1, $rule2, $rule3]);
+        $groupRules->getPermissions('complex')->willReturn([]);
         $groupRules->getResourcePermissions($resourceObject)->willReturn([$groupActionRule]);
         $groupRules->getResourcePermissionsByClass('ResourceObject')->willReturn([$groupActionRule]);
 
@@ -170,6 +182,20 @@ function let(
                             'login' => [],
                         ],
                     ],
+                    'Admin\Controller\ComplexController' => [
+                        'default' => ['user'],
+                        'actions' => [
+                            'save' => [
+                                AccessService::GUARD_ACTION => 'save',
+                                AccessService::GUARD_RESOURCE => 'complex',
+                            ],
+                            'delete' => [
+                                AccessService::GUARD_ROLE => 'admin',
+                                AccessService::GUARD_ACTION => 'save',
+                                AccessService::GUARD_RESOURCE => 'complex',
+                            ],
+                        ],
+                    ],
                 ],
             ],
         ];
@@ -370,6 +396,38 @@ function it_allows_action_overrides()
         $this->canAccessAction('Foo\Controller\IndexController', 'login')->shouldBe(true);
     }
 
+    function it_allows_resource_based_action_rules(User $user)
+    {
+        $this->setUser($user);
+        $this->canAccessAction('Admin\Controller\ComplexController', 'save')->shouldBe(true);
+    }
+
+    /**
+     * There is no resource rule defined for this action, so it should not be allowed.
+     */
+    function it_still_falls_back_onto_controller_definitions_when_actions_are_not_defined(User $user)
+    {
+        $this->setUser($user);
+        $this->canAccessAction('Admin\Controller\ComplexController', 'load')->shouldBe(true);
+    }
+
+    /**
+     * There is no resource rule defined for this action, so it should not be allowed.
+     */
+    function it_will_protect_in_cases_where_users_are_not_defined(User $user)
+    {
+        $this->canAccessAction('Admin\Controller\ComplexController', 'save')->shouldBe(false);
+    }
+
+    /**
+     * There is no resource rule defined for this action, so it should not be allowed.
+     */
+    function it_supports_overriding_default_roles(User $user)
+    {
+        $this->canAccessAction('Admin\Controller\ComplexController', 'delete')->shouldBe(false);
+    }
+
+
     function it_returns_roles_when_no_user_is_set()
     {
         $this->getRoles()->shouldHaveCount(0);
diff --git a/src/Factory/AbstractDoctrineMapperFactory.php b/src/Factory/AbstractDoctrineMapperFactory.php
index 5870475..003506d 100644
--- a/src/Factory/AbstractDoctrineMapperFactory.php
+++ b/src/Factory/AbstractDoctrineMapperFactory.php
@@ -4,8 +4,8 @@
 
 namespace CirclicalUser\Factory;
 
-use Interop\Container\ContainerInterface;
 use Laminas\ServiceManager\Factory\AbstractFactoryInterface;
+use Psr\Container\ContainerInterface;
 
 use function strstr;
 
diff --git a/src/Factory/Controller/Plugin/AuthenticationPluginFactory.php b/src/Factory/Controller/Plugin/AuthenticationPluginFactory.php
index e04e2f5..091e978 100644
--- a/src/Factory/Controller/Plugin/AuthenticationPluginFactory.php
+++ b/src/Factory/Controller/Plugin/AuthenticationPluginFactory.php
@@ -7,8 +7,8 @@
 use CirclicalUser\Controller\Plugin\AuthenticationPlugin;
 use CirclicalUser\Service\AccessService;
 use CirclicalUser\Service\AuthenticationService;
-use Interop\Container\ContainerInterface;
 use Laminas\ServiceManager\Factory\FactoryInterface;
+use Psr\Container\ContainerInterface;
 
 class AuthenticationPluginFactory implements FactoryInterface
 {
diff --git a/src/Factory/Listener/AccessListenerFactory.php b/src/Factory/Listener/AccessListenerFactory.php
index c3e87ea..4153f8e 100644
--- a/src/Factory/Listener/AccessListenerFactory.php
+++ b/src/Factory/Listener/AccessListenerFactory.php
@@ -7,9 +7,9 @@
 use CirclicalUser\Listener\AccessListener;
 use CirclicalUser\Service\AccessService;
 use Exception;
-use Interop\Container\ContainerInterface;
 use InvalidArgumentException;
 use Laminas\ServiceManager\Factory\FactoryInterface;
+use Psr\Container\ContainerInterface;
 
 use function class_exists;
 
diff --git a/src/Factory/Listener/UserEntityListenerFactory.php b/src/Factory/Listener/UserEntityListenerFactory.php
index e5935ad..104ccbb 100644
--- a/src/Factory/Listener/UserEntityListenerFactory.php
+++ b/src/Factory/Listener/UserEntityListenerFactory.php
@@ -6,8 +6,8 @@
 
 use CirclicalUser\Listener\UserEntityListener;
 use DomainException;
-use Interop\Container\ContainerInterface;
 use Laminas\ServiceManager\Factory\FactoryInterface;
+use Psr\Container\ContainerInterface;
 
 class UserEntityListenerFactory implements FactoryInterface
 {
diff --git a/src/Factory/Mapper/UserMapperFactory.php b/src/Factory/Mapper/UserMapperFactory.php
index 8d7316a..ebd06ad 100644
--- a/src/Factory/Mapper/UserMapperFactory.php
+++ b/src/Factory/Mapper/UserMapperFactory.php
@@ -7,8 +7,8 @@
 use CirclicalUser\Exception\ConfigurationException;
 use CirclicalUser\Mapper\UserMapper;
 use CirclicalUser\Provider\UserInterface;
-use Interop\Container\ContainerInterface;
 use Laminas\ServiceManager\Factory\FactoryInterface;
+use Psr\Container\ContainerInterface;
 
 use function class_exists;
 use function class_implements;
diff --git a/src/Factory/Service/AccessServiceFactory.php b/src/Factory/Service/AccessServiceFactory.php
index 56edb0a..9326aa7 100644
--- a/src/Factory/Service/AccessServiceFactory.php
+++ b/src/Factory/Service/AccessServiceFactory.php
@@ -12,9 +12,9 @@
 use CirclicalUser\Provider\RoleProviderInterface;
 use CirclicalUser\Service\AccessService;
 use CirclicalUser\Service\AuthenticationService;
-use Interop\Container\ContainerInterface;
 use Laminas\ServiceManager\Factory\FactoryInterface;
 use LogicException;
+use Psr\Container\ContainerInterface;
 
 class AccessServiceFactory implements FactoryInterface
 {
diff --git a/src/Factory/Service/AuthenticationServiceFactory.php b/src/Factory/Service/AuthenticationServiceFactory.php
index 66bd661..ea25ee5 100644
--- a/src/Factory/Service/AuthenticationServiceFactory.php
+++ b/src/Factory/Service/AuthenticationServiceFactory.php
@@ -9,8 +9,8 @@
 use CirclicalUser\Mapper\UserResetTokenMapper;
 use CirclicalUser\Provider\PasswordCheckerInterface;
 use CirclicalUser\Service\AuthenticationService;
-use Interop\Container\ContainerInterface;
 use Laminas\ServiceManager\Factory\FactoryInterface;
+use Psr\Container\ContainerInterface;
 use RuntimeException;
 
 use function base64_decode;
diff --git a/src/Factory/Service/PasswordChecker/PasswordCheckerFactory.php b/src/Factory/Service/PasswordChecker/PasswordCheckerFactory.php
index 907bf8b..45048bd 100644
--- a/src/Factory/Service/PasswordChecker/PasswordCheckerFactory.php
+++ b/src/Factory/Service/PasswordChecker/PasswordCheckerFactory.php
@@ -7,9 +7,9 @@
 use CirclicalUser\Exception\PasswordStrengthCheckerException;
 use CirclicalUser\Provider\PasswordCheckerInterface;
 use CirclicalUser\Service\PasswordChecker\PasswordNotChecked;
-use Interop\Container\ContainerInterface;
 use Laminas\ServiceManager\Factory\FactoryInterface;
 use Psr\Container\ContainerExceptionInterface;
+use Psr\Container\ContainerInterface;
 use Psr\Container\NotFoundExceptionInterface;
 use RuntimeException;
 
diff --git a/src/Factory/Strategy/RedirectStrategyFactory.php b/src/Factory/Strategy/RedirectStrategyFactory.php
index 01c6652..e91327e 100644
--- a/src/Factory/Strategy/RedirectStrategyFactory.php
+++ b/src/Factory/Strategy/RedirectStrategyFactory.php
@@ -5,9 +5,9 @@
 namespace CirclicalUser\Factory\Strategy;
 
 use CirclicalUser\Strategy\RedirectStrategy;
-use Interop\Container\ContainerInterface;
 use InvalidArgumentException;
 use Laminas\ServiceManager\Factory\FactoryInterface;
+use Psr\Container\ContainerInterface;
 
 class RedirectStrategyFactory implements FactoryInterface
 {
diff --git a/src/Factory/Validator/PasswordValidatorFactory.php b/src/Factory/Validator/PasswordValidatorFactory.php
index 8c72060..0a56018 100644
--- a/src/Factory/Validator/PasswordValidatorFactory.php
+++ b/src/Factory/Validator/PasswordValidatorFactory.php
@@ -6,8 +6,8 @@
 
 use CirclicalUser\Provider\PasswordCheckerInterface;
 use CirclicalUser\Validator\PasswordValidator;
-use Interop\Container\ContainerInterface;
 use Laminas\ServiceManager\Factory\FactoryInterface;
+use Psr\Container\ContainerInterface;
 
 class PasswordValidatorFactory implements FactoryInterface
 {
diff --git a/src/Factory/View/Helper/ControllerAccessViewHelperFactory.php b/src/Factory/View/Helper/ControllerAccessViewHelperFactory.php
index d334512..e713dcf 100644
--- a/src/Factory/View/Helper/ControllerAccessViewHelperFactory.php
+++ b/src/Factory/View/Helper/ControllerAccessViewHelperFactory.php
@@ -6,8 +6,8 @@
 
 use CirclicalUser\Service\AccessService;
 use CirclicalUser\View\Helper\ControllerAccessViewHelper;
-use Interop\Container\ContainerInterface;
 use Laminas\ServiceManager\Factory\FactoryInterface;
+use Psr\Container\ContainerInterface;
 
 class ControllerAccessViewHelperFactory implements FactoryInterface
 {
diff --git a/src/Factory/View/Helper/RoleAccessViewHelperFactory.php b/src/Factory/View/Helper/RoleAccessViewHelperFactory.php
index 4ab5599..42f9fe1 100644
--- a/src/Factory/View/Helper/RoleAccessViewHelperFactory.php
+++ b/src/Factory/View/Helper/RoleAccessViewHelperFactory.php
@@ -6,8 +6,8 @@
 
 use CirclicalUser\Service\AccessService;
 use CirclicalUser\View\Helper\RoleAccessViewHelper;
-use Interop\Container\ContainerInterface;
 use Laminas\ServiceManager\Factory\FactoryInterface;
+use Psr\Container\ContainerInterface;
 
 class RoleAccessViewHelperFactory implements FactoryInterface
 {
diff --git a/src/Service/AccessService.php b/src/Service/AccessService.php
index 49fad11..e4f58b8 100644
--- a/src/Service/AccessService.php
+++ b/src/Service/AccessService.php
@@ -23,6 +23,7 @@
 use CirclicalUser\Provider\UserProviderInterface;
 use Exception;
 
+use function array_key_exists;
 use function array_unique;
 use function get_class;
 use function in_array;
@@ -33,6 +34,9 @@ class AccessService
 {
     public const ACCESS_DENIED = 'ACL_ACCESS_DENIED';
     public const ACCESS_UNAUTHORIZED = 'ACCESS_UNAUTHORIZED';
+    public const GUARD_ROLE = 'role';
+    public const GUARD_ACTION = 'action';
+    public const GUARD_RESOURCE = 'resource';
 
     private ?User $user;
     private UserProviderInterface $userProvider;
@@ -167,6 +171,18 @@ public function canAccessAction(string $controllerName, string $action): bool
                 return true;
             }
 
+            $actionConfiguration = $this->actions[$controllerName][$action];
+
+            if (is_array($actionConfiguration) && array_key_exists(self::GUARD_RESOURCE, $actionConfiguration) && array_key_exists(self::GUARD_ACTION, $actionConfiguration)) {
+                if (!empty($actionConfiguration[self::GUARD_ROLE])) {
+                    if (!$this->hasRoleWithName($actionConfiguration[self::GUARD_ROLE])) {
+                        return false;
+                    }
+                }
+
+                return $this->isAllowed($actionConfiguration[self::GUARD_RESOURCE], $actionConfiguration[self::GUARD_ACTION]);
+            }
+
             foreach ($this->actions[$controllerName][$action] as $role) {
                 if ($this->hasRoleWithName($role)) {
                     return true;
@@ -248,8 +264,6 @@ public function getRoleWithName(string $roleName): ?RoleInterface
     /**
      * Add a role for the current User
      *
-     * @internal param $roleId
-     *
      * @throws InvalidRoleException
      * @throws UserRequiredException
      */
diff --git a/src/Service/AuthenticationService.php b/src/Service/AuthenticationService.php
index dfda46c..088695b 100644
--- a/src/Service/AuthenticationService.php
+++ b/src/Service/AuthenticationService.php
@@ -386,9 +386,9 @@ private function setCookie(string $name, string $value, int $expiry, bool $httpO
      *  - COOKIE_USER has its contents encrypted by the system key
      *  - the random-named-cookie has its contents encrypted by the user key
      *
-     * @throws InvalidKey
      * @see self::setSessionCookies
      *
+     * @throws InvalidKey
      */
     public function getIdentity(): ?User
     {
@@ -507,7 +507,6 @@ private function purgeHashCookies(?string $skipCookie = null)
 
     /**
      * @param User $user Used by some password checkers to provide better checking
-     *
      * @throws WeakPasswordException
      */
     private function enforcePasswordStrength(string $password, User $user)
@@ -523,7 +522,6 @@ private function enforcePasswordStrength(string $password, User $user)
      *
      * @param User   $user        The user to whom this password gets assigned
      * @param string $newPassword Cleartext password that's being hashed
-     *
      * @throws NoSuchUserException
      * @throws WeakPasswordException
      */
@@ -547,7 +545,6 @@ public function resetPassword(User $user, string $newPassword)
      *
      * @param User   $user     The user to validate password for
      * @param string $password Cleartext password that'w will be verified
-     *
      * @throws PersistedUserRequiredException
      * @throws UserWithoutAuthenticationRecordException
      */