diff --git a/composer.json b/composer.json
index fa6dc02..dc098ac 100644
--- a/composer.json
+++ b/composer.json
@@ -1,5 +1,8 @@
 {
     "require": {
         "mikey179/vfsStream": "*"
-    }
+    },
+    "require-dev": {
+		"EHER/PHPUnit": "*"
+	}
 }
\ No newline at end of file