diff --git a/src/YamlLoader.php b/src/YamlLoader.php
index 2a1e496..45ee73a 100644
--- a/src/YamlLoader.php
+++ b/src/YamlLoader.php
@@ -38,9 +38,9 @@ public function loadResource($resource)
 
     public function supports($resource, $type = null)
     {
-        return is_string($resource) && 'yml' === pathinfo(
+        return is_string($resource) && in_array(pathinfo(
             $resource,
             PATHINFO_EXTENSION
-        );
+        ), ['yaml', 'yml'], true);
     }
 }
\ No newline at end of file