diff --git a/modules/authtwitter/lib/Auth/Source/Twitter.php b/modules/authtwitter/lib/Auth/Source/Twitter.php
index e021c3349d3cad96d1fb7a1052f26fa5f538d5fe..7100559800aad8bc9ce158e13a20749cb13ee6ac 100644
--- a/modules/authtwitter/lib/Auth/Source/Twitter.php
+++ b/modules/authtwitter/lib/Auth/Source/Twitter.php
@@ -94,7 +94,7 @@ class sspmod_authtwitter_Auth_Source_Twitter extends SimpleSAML_Auth_Source {
 		SimpleSAML_Logger::debug("Got an access token from the OAuth service provider [" . 
 			$accessToken->key . "] with the secret [" . $accessToken->secret . "]");
 			
-		$userdata = $consumer->getUserInfo('https://api.twitter.com/account/verify_credentials.json', $accessToken);
+		$userdata = $consumer->getUserInfo('https://api.twitter.com/1.1/account/verify_credentials.json', $accessToken);
 		
 		if (!isset($userdata['id_str']) || !isset($userdata['screen_name'])) {
 			throw new SimpleSAML_Error_AuthSource($this->authId, 'Authentication error: id_str and screen_name not set.');