diff --git a/composer.lock b/composer.lock
index 73e6eeb4..beda2d64 100644
--- a/composer.lock
+++ b/composer.lock
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@@ -1593,20 +1694,20 @@
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-            "time": "2016-03-04 07:54:35"
+            "time": "2016-06-06 11:11:27"
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+            "version": "v1.24.1",
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                 "url": "https://github.com/twigphp/Twig.git",
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-                "reference": "3e5aa30ebfbafd5951fb1b01e338e1800ce7e0e8",
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@@ -1654,7 +1755,56 @@
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-            "time": "2016-01-25 21:22:18"
+            "time": "2016-05-30 09:11:59"
+        },
+        {
+            "name": "webmozart/assert",
+            "version": "1.0.2",
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+                "type": "git",
+                "url": "https://github.com/webmozart/assert.git",
+                "reference": "30eed06dd6bc88410a4ff7f77b6d22f3ce13dbde"
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+            "require": {
+                "php": ">=5.3.3"
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+            "require-dev": {
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+            },
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+            "extra": {
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+            "autoload": {
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+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
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+                    "email": "bschussek@gmail.com"
+                }
+            ],
+            "description": "Assertions to validate method input/output with nice error messages.",
+            "keywords": [
+                "assert",
+                "check",
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