diff --git a/composer.json b/composer.json
index 0bc1c14..1959553 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
     ],
     "require": {
         "php": ">=7.0.0",
-        "publisher/publisher" : "dev-master"
+        "publisher/publisher" : "0.9.1"
     },
     "require-dev": {
         "phpunit/phpunit": "^5.7"