diff --git a/composer.json b/composer.json
index fd659de..232b785 100644
--- a/composer.json
+++ b/composer.json
@@ -36,7 +36,7 @@
         "php-http/message": "^1.0",
         "php-http/client-implementation": "^1.0",
         "league/uri": "~4.0",
-        "twig/twig": "~1.0"
+        "twig/twig": "~1.0|~2.0"
     },
     "require-dev": {
         "ext-curl": "*",