diff --git a/composer.json b/composer.json
index 0f6c76548e29e61a23838498f7fe5dc06fca9c0d..3e1c728f11f9c3bc5ab94eefd41c05c6e9cf9ff4 100644
--- a/composer.json
+++ b/composer.json
@@ -20,6 +20,7 @@
     },
     "require": {
         "php": "^7.1",
+        "phpdocumentor/reflection-docblock": "^4.3",
         "psr/container": "^1.0",
         "symfony/cache": "^4.3",
         "symfony/serializer": "^4.3",