diff --git a/src/JwtAuthentication.php b/src/JwtAuthentication.php
index 8df2eeb..f4a999c 100644
--- a/src/JwtAuthentication.php
+++ b/src/JwtAuthentication.php
@@ -54,6 +54,11 @@
 use Tuupola\Middleware\JwtAuthentication\RequestPathRule;
 use Tuupola\Middleware\JwtAuthentication\RuleInterface;
 
+use function array_fill_keys;
+use function array_keys;
+use function count;
+use function is_array;
+
 final class JwtAuthentication implements MiddlewareInterface
 {
     use DoublePassTrait;
@@ -310,6 +315,16 @@ private function decodeToken(string $token): array
      */
     private function hydrate(array $data = []): void
     {
+        $data['algorithm'] = $data['algorithm'] ?? $this->options['algorithm'];
+        if ((is_array($data['secret']) || $data['secret'] instanceof ArrayAccess)
+            && is_array($data['algorithm'])
+            && count($data['algorithm']) === 1
+            && count($data['secret']) > count($data['algorithm'])
+        ) {
+            $secretIndex = array_keys((array) $data['secret']);
+            $data['algorithm'] = array_fill_keys($secretIndex, $data['algorithm'][0]);
+        }
+
         foreach ($data as $key => $value) {
             /* https://github.com/facebook/hhvm/issues/6368 */
             $key = str_replace(".", " ", $key);
diff --git a/tests/ArrayAccessImpl.php b/tests/ArrayAccessImpl.php
deleted file mode 100644
index 8abe2ed..0000000
--- a/tests/ArrayAccessImpl.php
+++ /dev/null
@@ -1,58 +0,0 @@
-<?php
-
-/*
-
-Copyright (c) 2015-2022 Mika Tuupola
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-
-*/
-
-/**
- * @see       https://github.com/tuupola/slim-jwt-auth
- * @see       https://appelsiini.net/projects/slim-jwt-auth
- * @license   https://www.opensource.org/licenses/mit-license.php
- */
-
-namespace Tuupola\Middleware;
-
-class ArrayAccessImpl implements \ArrayAccess
-{
-    private $array = [];
-
-    public function offsetExists($offset)
-    {
-        return isset($this->array[$offset]);
-    }
-
-    public function offsetGet($offset)
-    {
-        return $this->array[$offset];
-    }
-
-    public function offsetSet($offset, $value)
-    {
-        $this->array[$offset] = $value;
-    }
-
-    public function offsetUnset($offset)
-    {
-        unset($this->array[$offset]);
-    }
-}
diff --git a/tests/JwtAuthenticationTest.php b/tests/JwtAuthenticationTest.php
index 9564968..c0ae144 100644
--- a/tests/JwtAuthenticationTest.php
+++ b/tests/JwtAuthenticationTest.php
@@ -32,9 +32,8 @@
 
 namespace Tuupola\Middleware;
 
+use ArrayObject;
 use Equip\Dispatch\MiddlewareCollection;
-use Firebase\JWT\JWT;
-use Firebase\JWT\Key;
 use PHPUnit\Framework\TestCase;
 use Psr\Http\Message\ServerRequestInterface;
 use Psr\Http\Message\ResponseInterface;
@@ -108,7 +107,6 @@ public function testShouldReturn200WithTokenFromHeader()
         $collection = new MiddlewareCollection([
             new JwtAuthentication([
                 "secret" => "supersecretkeyyoushouldnotcommittogithub",
-                "algorithm" => ['HS256'],
                 "header" => "X-Token"
             ])
         ]);
@@ -134,7 +132,6 @@ public function testShouldReturn200WithTokenFromHeaderWithCustomRegexp()
         $collection = new MiddlewareCollection([
             new JwtAuthentication([
                 "secret" => "supersecretkeyyoushouldnotcommittogithub",
-                "algorithm" => ['HS256'],
                 "header" => "X-Token",
                 "regexp" => "/(.*)/"
             ])
@@ -161,7 +158,6 @@ public function testShouldReturn200WithTokenFromCookie()
         $collection = new MiddlewareCollection([
             new JwtAuthentication([
                 "secret" => "supersecretkeyyoushouldnotcommittogithub",
-                "algorithm" => ['HS256'],
                 "cookie" => "nekot",
             ])
         ]);
@@ -187,7 +183,6 @@ public function testShouldReturn200WithTokenFromBearerCookie()
         $collection = new MiddlewareCollection([
             new JwtAuthentication([
                 "secret" => "supersecretkeyyoushouldnotcommittogithub",
-                "algorithm" => ['HS256'],
                 "cookie" => "nekot",
             ])
         ]);
@@ -217,7 +212,6 @@ public function testShouldReturn200WithSecretArray()
                     "acme" =>"supersecretkeyyoushouldnotcommittogithub",
                     "beta" =>"anothersecretkeyfornevertocommittogithub"
                 ],
-                "algorithm" => ['acme' => 'HS256', 'beta' => 'HS256'],
             ])
         ]);
 
@@ -264,14 +258,13 @@ public function testShouldReturn200WithSecretArrayAccess()
             return $response;
         };
 
-        $secret = new ArrayAccessImpl();
+        $secret = new ArrayObject();
         $secret["acme"] = "supersecretkeyyoushouldnotcommittogithub";
         $secret["beta"] ="anothersecretkeyfornevertocommittogithub";
 
         $collection = new MiddlewareCollection([
             new JwtAuthentication([
                 "secret" => $secret,
-                "algorithm" => ['acme' => 'HS256', 'beta' => 'HS256'],
             ])
         ]);
 
@@ -292,14 +285,13 @@ public function testShouldReturn401WithSecretArrayAccess()
             return $response;
         };
 
-        $secret = new ArrayAccessImpl();
+        $secret = new ArrayObject();
         $secret["xxxx"] = "supersecretkeyyoushouldnotcommittogithub";
         $secret["yyyy"] = "anothersecretkeyfornevertocommittogithub";
 
         $collection = new MiddlewareCollection([
             new JwtAuthentication([
                 "secret" => $secret,
-                "algorithm" => ['xxxx' => 'HS256', 'yyyy' => 'HS256',],
             ])
         ]);