diff --git a/DependencyInjection/ABELkeycloakBearerOnlyAdapterExtension.php b/DependencyInjection/ABELkeycloakBearerOnlyAdapterExtension.php
index df65028..a568b33 100644
--- a/DependencyInjection/ABELkeycloakBearerOnlyAdapterExtension.php
+++ b/DependencyInjection/ABELkeycloakBearerOnlyAdapterExtension.php
@@ -24,6 +24,7 @@ class ABELkeycloakBearerOnlyAdapterExtension extends Extension
         $definition->replaceArgument(1, $config['realm']);
         $definition->replaceArgument(2, $config['client_id']);
         $definition->replaceArgument(3, $config['client_secret']);
+        $definition->replaceArgument(4, $config['ssl_verification']);
     }
 
     public function getAlias()
diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 4e799b7..0439fc4 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -31,6 +31,10 @@ class Configuration implements ConfigurationInterface
                 ->scalarNode("client_secret")
                     ->isRequired()
                     ->cannotBeEmpty()
+                ->end()
+                ->scalarNode('ssl_verification')
+                    ->defaultFalse()
+                    ->treatNullLike(false)
                 ->end();
 
         return $treeBuilder;
diff --git a/Resources/config/services.xml b/Resources/config/services.xml
index ce130b6..4675f42 100644
--- a/Resources/config/services.xml
+++ b/Resources/config/services.xml
@@ -17,6 +17,7 @@
             <argument/>
             <argument/>
             <argument/>
+            <argument/>
         </service>
 
         <service id="ABEL\Bundle\keycloakBearerOnlyAdapterBundle\Security\User\KeycloakBearerUserProvider" alias="abel_keycloak_bearer_only_adapter.keycloak_bearer_user_provider" />
diff --git a/Security/Authenticator/KeycloakBearerAuthenticator.php b/Security/Authenticator/KeycloakBearerAuthenticator.php
index 12b5329..7692555 100644
--- a/Security/Authenticator/KeycloakBearerAuthenticator.php
+++ b/Security/Authenticator/KeycloakBearerAuthenticator.php
@@ -210,6 +210,6 @@ class KeycloakBearerAuthenticator extends AbstractGuardAuthenticator
      */
     protected function formatToken(string $token): string
     {
-        return trim(preg_replace('/^(?:\s+)?Bearer\s/', '', $token));
+        return trim(preg_replace('/^(?:\s+)?[B-b]earer\s/', '', $token));
     }
 }
\ No newline at end of file
diff --git a/Security/User/KeycloakBearerUserProvider.php b/Security/User/KeycloakBearerUserProvider.php
index 9403093..1391d97 100644
--- a/Security/User/KeycloakBearerUserProvider.php
+++ b/Security/User/KeycloakBearerUserProvider.php
@@ -28,6 +28,10 @@ class KeycloakBearerUserProvider implements UserProviderInterface
      * @var string
      */
     private $client_secret;
+    /**
+     * @var mixed
+     */
+    private $sslVerification;
 
     /**
      * KeycloakBearerUserProvider constructor.
@@ -36,12 +40,13 @@ class KeycloakBearerUserProvider implements UserProviderInterface
      * @param string $client_id
      * @param string $client_secret
      */
-    public function __construct(string $issuer, string $realm, string $client_id, string $client_secret)
+    public function __construct(string $issuer, string $realm, string $client_id, string $client_secret, $sslVerification)
     {
         $this->issuer = $issuer;
         $this->realm = $realm;
         $this->client_id = $client_id;
         $this->client_secret = $client_secret;
+        $this->sslVerification = $sslVerification;
     }
 
     /**
@@ -71,6 +76,7 @@ class KeycloakBearerUserProvider implements UserProviderInterface
                 'http'  => '', // Use this proxy with "http"
                 'https' => '', // Use this proxy with "https",
             ],
+            'verify' => $this->sslVerification,
             'http_errors' => false
         ]);