diff --git a/NAApiClient.php b/NAApiClient.php
index 0f369b5..51ad2b3 100644
--- a/NAApiClient.php
+++ b/NAApiClient.php
@@ -7,8 +7,8 @@
 define('JSON_ERROR_TYPE',3);
 define('NOT_LOGGED_ERROR_TYPE', 4); //unable to get access token
 
-define('BACKEND_BASE_URI', "http://api.netatmo.net/");
-define('BACKEND_SERVICES_URI', "http://api.netatmo.net/api");
+define('BACKEND_BASE_URI', "https://api.netatmo.net/");
+define('BACKEND_SERVICES_URI', "https://api.netatmo.net/api");
 define('BACKEND_ACCESS_TOKEN_URI', "https://api.netatmo.net/oauth2/token");
 define('BACKEND_AUTHORIZE_URI', "https://api.netatmo.net/oauth2/authorize");