diff --git a/composer.json b/composer.json
index fcbb629..48fba40 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
         }
     },
     
-    "version":"master",
+    "version":"dev-master",
     "require-dev": {
         "phpunit/phpunit": "^5.7"
     }