diff --git a/config/gravatar.php b/config/gravatar.php
index bd504671..d2f28cb3 100644
--- a/config/gravatar.php
+++ b/config/gravatar.php
@@ -5,5 +5,5 @@
 
 return [
     'url'     => 'https://www.gravatar.com/avatar/',
-    'default' => 'https://en.gravatar.com/userimage/12856995/aa6c0527a723abfd5fb9e246f0ff8af4.png',
+    'default' => env('GRAVATAR_DEFAULT_AVATAR', 'https://en.gravatar.com/userimage/12856995/aa6c0527a723abfd5fb9e246f0ff8af4.png'),
 ];