diff --git a/composer.json b/composer.json
index 798c12e..8e617c5 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
     ],
     "require": {
         "php": ">=5.5.9",
-        "illuminate/support": "^5.1",
+        "illuminate/support": "~5.1.0|~5.2.0|~5.3.0|~5.4.0",
         "symfony/finder": "^2.7|^3.0",
         "symfony/process": "^2.7|^3.0",
         "symfony/var-dumper": "^2.7|^3.0",
diff --git a/composer.lock b/composer.lock
index a9e9c0c..0ab1c9f 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "fa72cf72da2fcf46cc15a9cfa04dbce8",
+    "content-hash": "44fe8b14cfd27bb77097568914603200",
     "packages": [
         {
             "name": "doctrine/inflector",
@@ -1200,16 +1200,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "5.7.13",
+            "version": "5.7.14",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "60ebeed87a35ea46fd7f7d8029df2d6f013ebb34"
+                "reference": "4906b8faf23e42612182fd212eb6f4c0f2954b57"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/60ebeed87a35ea46fd7f7d8029df2d6f013ebb34",
-                "reference": "60ebeed87a35ea46fd7f7d8029df2d6f013ebb34",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/4906b8faf23e42612182fd212eb6f4c0f2954b57",
+                "reference": "4906b8faf23e42612182fd212eb6f4c0f2954b57",
                 "shasum": ""
             },
             "require": {
@@ -1233,7 +1233,7 @@
                 "sebastian/global-state": "^1.1",
                 "sebastian/object-enumerator": "~2.0",
                 "sebastian/resource-operations": "~1.0",
-                "sebastian/version": "~1.0|~2.0",
+                "sebastian/version": "~1.0.3|~2.0",
                 "symfony/yaml": "~2.1|~3.0"
             },
             "conflict": {
@@ -1278,7 +1278,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2017-02-10T09:05:10+00:00"
+            "time": "2017-02-19T07:22:16+00:00"
         },
         {
             "name": "phpunit/phpunit-mock-objects",
@@ -1670,16 +1670,16 @@
         },
         {
             "name": "sebastian/object-enumerator",
-            "version": "2.0.0",
+            "version": "2.0.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/object-enumerator.git",
-                "reference": "96f8a3f257b69e8128ad74d3a7fd464bcbaa3b35"
+                "reference": "1311872ac850040a79c3c058bea3e22d0f09cbb7"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/object-enumerator/zipball/96f8a3f257b69e8128ad74d3a7fd464bcbaa3b35",
-                "reference": "96f8a3f257b69e8128ad74d3a7fd464bcbaa3b35",
+                "url": "https://api.github.com/repos/sebastianbergmann/object-enumerator/zipball/1311872ac850040a79c3c058bea3e22d0f09cbb7",
+                "reference": "1311872ac850040a79c3c058bea3e22d0f09cbb7",
                 "shasum": ""
             },
             "require": {
@@ -1712,7 +1712,7 @@
             ],
             "description": "Traverses array structures and object graphs to enumerate all referenced objects",
             "homepage": "https://github.com/sebastianbergmann/object-enumerator/",
-            "time": "2016-11-19T07:35:10+00:00"
+            "time": "2017-02-18T15:18:39+00:00"
         },
         {
             "name": "sebastian/recursion-context",