diff --git a/composer.json b/composer.json
index 9f04e0b..56be992 100644
--- a/composer.json
+++ b/composer.json
@@ -7,7 +7,7 @@
 	"require": {
 		"smarty/smarty": "~3.1.29",
 		"rg3/youtube-dl": "~2016.07.26",
-		"slim/slim": "3.5.0",
+		"slim/slim": "~3.5.0",
 		"mathmarques/smarty-view": "~1.1.0",
 		"symfony/yaml": "~3.1.0",
 		"symfony/process": "~3.1.0",
diff --git a/composer.lock b/composer.lock
index 65d7d72..17a3e32 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,8 +4,8 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "483d889796869f2dae339dd9d899b3c9",
-    "content-hash": "08f1b6127328a6070354963ec15f5c1b",
+    "hash": "2afe3e4c1f053ce8a1dc13887ea3aa8c",
+    "content-hash": "2c86697f5f04b91631cd33dbedce3179",
     "packages": [
         {
             "name": "container-interop/container-interop",