diff --git a/composer.json b/composer.json
index d32a32542a8147a79c17580ff18cfb243f39b743..270b340e19c45be58329691be4d8abbdf388652e 100644
--- a/composer.json
+++ b/composer.json
@@ -8,14 +8,10 @@
         }
     ],
     "require"     : {
-
-    },
-    "require-dev" : {
-        "phpunit/PHPUnit": "^5.6"
     },
     "autoload"    : {
-        "psr-0"   : {
-            "Unicaen/OpenDocument"    : "src/"
+        "psr-4"   : {
+            "Unicaen\\OpenDocument\\": "src/"
         },
         "classmap": [
             "./Module.php"