diff --git a/composer.json b/composer.json
index 9284854..859f07f 100644
--- a/composer.json
+++ b/composer.json
@@ -4,7 +4,7 @@
     "license":"MIT",
     "require":{
         "php":">=5.3.0",
-        "slim/slim": "~2.6",
+        "slim/slim": "~4.2",
         "slim/views": "~0.1",
         "twig/twig": "~1.16",
         "panique/pdo-debug": "0.2",