diff --git a/functions.php b/functions.php
index a8a4a92..36a221f 100644
--- a/functions.php
+++ b/functions.php
@@ -19,7 +19,7 @@
  add_action( 'init', 'kspace_post_supports' );
 
  add_theme_support( 'post-thumbnails' );
- set_post_thumbnail_size( 825, 510, true );
+ set_post_thumbnail_size( 825, 825, true );
 
 /* 1. Niveau support
  *