diff --git a/composer.json b/composer.json
index 87432cea..90f35945 100644
--- a/composer.json
+++ b/composer.json
@@ -29,6 +29,7 @@
         "lstrojny/functional-php": "^1.8",
         "mikehaertl/phpwkhtmltopdf": "^2.2",
         "monolog/monolog": "^1.21",
+        "ocramius/proxy-manager": "^2.0",
         "phly/phly-event-dispatcher": "^1.0",
         "shlinkio/shlink-installer": "^1.1",
         "symfony/console": "^4.2",