diff --git a/composer.json b/composer.json
index f979d126908c40ea4d15d8364374285571b2f7ab..7d6d59b91a46fbd1ef365a780881cd5a18969b06 100644
--- a/composer.json
+++ b/composer.json
@@ -26,6 +26,7 @@
     ],
     "require": {
         "php": "^7.1",
+        "ext-json": "^1.5",
         "doctrine/doctrine-bundle": "^1.6",
         "doctrine/orm": "^2.5",
         "sensio/framework-extra-bundle": "^3.0.2",
@@ -39,7 +40,12 @@
         "white-october/pagerfanta-bundle": "~1.0",
         "willdurand/js-translation-bundle": "~2.2",
         "xenolope/quahog": "^2.1",
-        "symfony/intl": "^3.3"
+        "symfony/intl": "^3.3",
+        "psr/log": "^1.0",
+        "twig/twig": "^1.0||^2.0",
+        "twig/extensions": "^1.0",
+        "pagerfanta/pagerfanta": "^1.0",
+        "knplabs/gaufrette": "^0.3"
     },
     "require-dev": {
         "phpunit/phpunit": "^4.8"