diff --git a/composer.json b/composer.json
index 59c780f9..6aa360a7 100644
--- a/composer.json
+++ b/composer.json
@@ -35,7 +35,7 @@
     ],
     "require": {
         "php": ">=5.2.0",
-        "j4mie/idiorm": "1.4.*"
+        "j4mie/idiorm": "1.5.*"
     },
     "autoload": {
         "classmap": ["paris.php"]