diff --git a/src/Authenticator/AuthenticationRequiredException.php b/src/Authenticator/AuthenticationRequiredException.php
index 910fdec7..1bdd6370 100644
--- a/src/Authenticator/AuthenticationRequiredException.php
+++ b/src/Authenticator/AuthenticationRequiredException.php
@@ -17,6 +17,7 @@
 namespace Authentication\Authenticator;
 
 use Cake\Http\Exception\HttpException;
+use function Cake\I18n\__d;
 
 /**
  * An exception for stateless authenticators when credentials are wrong/missing.
@@ -45,7 +46,7 @@ class AuthenticationRequiredException extends HttpException
      */
     public function __construct(array $headers, string $body = '', int $code = 401)
     {
-        parent::__construct('Authentication is required to continue', $code);
+        parent::__construct(__d('authentication', 'Authentication is required to continue'), $code);
         $this->headers = $headers;
         $this->body = $body;
     }
diff --git a/src/Authenticator/UnauthenticatedException.php b/src/Authenticator/UnauthenticatedException.php
index 7546ac42..538129d8 100644
--- a/src/Authenticator/UnauthenticatedException.php
+++ b/src/Authenticator/UnauthenticatedException.php
@@ -18,6 +18,7 @@
 
 use Cake\Http\Exception\HttpException;
 use Throwable;
+use function Cake\I18n\__d;
 
 /**
  * An exception that signals that authentication was required but missing.
@@ -38,7 +39,7 @@ class UnauthenticatedException extends HttpException
     public function __construct(string $message = '', int $code = 401, ?Throwable $previous = null)
     {
         if (!$message) {
-            $message = 'Authentication is required to continue';
+            $message = __d('authentication', 'Authentication is required to continue');
         }
         parent::__construct($message, $code, $previous);
     }
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 1232baba..b55f16b5 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -15,6 +15,7 @@
  */
 
 use Authentication\Plugin as AuthenticationPlugin;
+use Cake\Cache\Cache;
 use Cake\Core\Configure;
 use Cake\Core\Plugin;
 use Cake\Datasource\ConnectionManager;
@@ -54,6 +55,12 @@
     ],
 ]);
 
+Cache::setConfig([
+    '_cake_translations_' => [
+        'engine' => 'Array',
+    ],
+]);
+
 if (!getenv('DB_URL')) {
     putenv('DB_URL=sqlite:///:memory:');
 }