diff --git a/core/composer.json b/core/composer.json
index 26938e3..b1547df 100644
--- a/core/composer.json
+++ b/core/composer.json
@@ -18,7 +18,7 @@
     "symfony/validator": "2.7.*",
     "symfony/process": "2.7.*",
     "symfony/yaml": "2.7.*",
-    "twig/twig": "1.18.*",
+    "twig/twig": "1.20.*",
     "doctrine/common": "~2.4.2",
     "doctrine/annotations": "1.2.*",
     "guzzlehttp/guzzle": "dev-master#1879fbe853b0c64d109e369c7aeff09849e62d1e",