diff --git a/Provider.php b/Provider.php
index ccb01f9..7f43f69 100644
--- a/Provider.php
+++ b/Provider.php
@@ -38,7 +38,7 @@ class Provider extends AbstractProvider
     /**
      * @var string
      */
-    public const STEAM_INFO_URL = 'https://api.steampowered.com/ISteamUser/GetPlayerSummaries/v0002/?key=%s&steamids=%s';
+    public const STEAM_INFO_URL = 'http://api.steampowered.com/ISteamUser/GetPlayerSummaries/v0002/?key=%s&steamids=%s';
 
     /**
      * @var string
@@ -58,7 +58,7 @@ class Provider extends AbstractProvider
     /**
      * @var string
      */
-    public const OPENID_NS = 'https://specs.openid.net/auth/2.0';
+    public const OPENID_NS = 'http://specs.openid.net/auth/2.0';
 
     /**
      * @var string
@@ -151,8 +151,8 @@ private function buildUrl()
             'openid.mode'       => 'checkid_setup',
             'openid.return_to'  => $this->redirectUrl,
             'openid.realm'      => sprintf('%s://%s', $this->request->getScheme(), $realm),
-            'openid.identity'   => 'https://specs.openid.net/auth/2.0/identifier_select',
-            'openid.claimed_id' => 'https://specs.openid.net/auth/2.0/identifier_select',
+            'openid.identity'   => 'http://specs.openid.net/auth/2.0/identifier_select',
+            'openid.claimed_id' => 'http://specs.openid.net/auth/2.0/identifier_select',
         ];
 
         return self::OPENID_URL.'?'.http_build_query($params, '', '&');