diff --git a/composer.json b/composer.json
index 124fdb4..2411ea7 100644
--- a/composer.json
+++ b/composer.json
@@ -14,5 +14,9 @@
         "psr-4": {
           "i3geo\\": "src"
         }
+    },
+    "require-dev": {
+        "friendsofphp/php-cs-fixer": "^2.12",
+        "phpunit/phpunit": "^7.3"
     }
 }
--
libgit2 0.21.2