diff --git a/composer.json b/composer.json
index 6d50f84ac0e569e42684b5a6ab0d02b623785a9b..479f237eed8a1af57b687675b84f49f4f89d03b7 100755
--- a/composer.json
+++ b/composer.json
@@ -34,6 +34,7 @@
         "respect/validation": "^1.1",
         "php-http/curl-client": "^1.7",
         "m4tthumphrey/php-gitlab-api": "8",
-        "jumbojett/openid-connect-php": "^0.3.0"
+        "jumbojett/openid-connect-php": "^0.3.0",
+        "zf1/zend-search-lucene": "~1.12"
     }
 }