diff --git a/Quandl.php b/Quandl.php
index 1864164..e346401 100644
--- a/Quandl.php
+++ b/Quandl.php
@@ -15,7 +15,7 @@ class Quandl {
 	private static $url_templates = [
 		"symbol"  => 'https://www.quandl.com/api/v1/datasets/%s.%s?%s',
 		"search"  => 'https://www.quandl.com/api/v1/datasets.%s?%s',
-		"list"    => 'http://www.quandl.com/api/v2/datasets.%s?%s',
+		"list"    => 'https://www.quandl.com/api/v2/datasets.%s?%s',
 	];
 	
 	public function __construct($api_key=null, $format="object") {