diff --git a/composer.json b/composer.json
index 7f5a5ce..8cca5f7 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
     "require-dev": {
         "phpunit/phpunit": "^8.5",
         "mockery/mockery": "^1.3",
-        "blue32a/php-coding-standard": "dev-master"
+        "blue32a/php-coding-standard": "v0.1.0-alpha"
     },
     "autoload": {
         "psr-4": {