diff --git a/composer.json b/composer.json
index cd130ab..549fae6 100644
--- a/composer.json
+++ b/composer.json
@@ -13,8 +13,8 @@
     ],
     "require": {
         "php": ">=5.6.0",
-        "yeaha/owl-core": "dev-master",
-        "yeaha/owl-service": "dev-master"
+        "yeaha/owl-core": "1.0.*",
+        "yeaha/owl-service": "1.0.*"
     },
     "autoload": {
         "psr-4": {"Owl\\DataMapper\\": "src/DataMapper/"}