diff --git a/php-packages/phpstan/composer.json b/php-packages/phpstan/composer.json
index 69ae3afea..ead4261b8 100644
--- a/php-packages/phpstan/composer.json
+++ b/php-packages/phpstan/composer.json
@@ -19,7 +19,7 @@
             ]
         },
         "branch-alias": {
-            "dev-master": "1.0.x-dev"
+            "dev-master": "1.x-dev"
         }
     }
 }