diff --git a/composer.json b/composer.json
index e0fa9c2..5b3de50 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
     "require-dev": {
         "phpunit/phpunit": "^5.5",
         "onion/framework": "2.0",
-        "doctrine/cache": "^1.6"
+        "doctrine/cache": "^2.1"
     },
     "autoload": {
         "psr-4": {