diff --git a/composer.json b/composer.json
index 2d30fa8147cf7b83e43e934912dda509695fcbc5..0cfa4c9f06221a15ab0b41bdf04b95659723df29 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
         "symfony/console": ">=v2.3.5",
         "tedivm/jshrink": "v0.5.1",
         "mustangostang/spyc": "0.5.*",
-        "piwik/device-detector": "*"
+        "piwik/device-detector": "1.0"
     },
     "require-dev": {
         "phpunit/phpunit": "4.*"