diff --git a/composer.json b/composer.json
index f777f9d5bda4e02df0df7481f301a7e1496ae084..88ad69caa1654bfa23a3e8189495faeb86b83564 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
   ],
   "require": {
     "unicaen/utilisateur":                          ">=5.0",
-    "unicaen/ldap":                                 ">=5.0"
+    "unicaen/ldap":                                 ">=4.0"
   },
   "autoload": {
     "psr-0": {