diff --git a/composer.json b/composer.json
index 1c68aa3..f30d0d1 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
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-        "symfony/monolog-bundle": "^2.8",
+        "symfony/monolog-bundle": "^3.1",
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@@ -25,7 +25,7 @@
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-        "oneup/flysystem-bundle": "^1.7",
+        "oneup/flysystem-bundle": "^1.13",
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diff --git a/composer.lock b/composer.lock
index 64229b5..19a8734 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
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@@ -2533,25 +2533,25 @@
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+                "monolog/monolog": "~1.22",
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-                "symfony/dependency-injection": "~2.3|~3.0",
-                "symfony/http-kernel": "~2.3|~3.0",
-                "symfony/monolog-bridge": "~2.3|~3.0"
+                "symfony/config": "~2.7|~3.0",
+                "symfony/dependency-injection": "~2.7|~3.0",
+                "symfony/http-kernel": "~2.7|~3.0",
+                "symfony/monolog-bridge": "~2.7|~3.0"
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@@ -2561,7 +2561,7 @@
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+                    "dev-master": "3.x-dev"
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@@ -2589,7 +2589,7 @@
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-            "time": "2017-01-02T19:04:26+00:00"
+            "time": "2017-03-26T11:55:59+00:00"
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@@ -2989,16 +2989,16 @@
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+            "version": "v3.3.2",
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@@ -3015,7 +3015,7 @@
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-                "twig/twig": "~1.32|~2.2"
+                "twig/twig": "~1.34|~2.4"
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@@ -3138,20 +3138,20 @@
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-            "time": "2017-05-29T21:02:32+00:00"
+            "time": "2017-06-06T04:00:14+00:00"
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+            "version": "v2.4.2",
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-                "reference": "85e8372c451510165c04bf781295f9d922fa524b"
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@@ -3166,12 +3166,15 @@
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+                    "dev-master": "2.4-dev"
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             "autoload": {
                 "psr-0": {
                     "Twig_": "lib/"
+                },
+                "psr-4": {
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@@ -3201,7 +3204,7 @@
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-            "time": "2017-04-21T00:13:02+00:00"
+            "time": "2017-06-06T03:58:14+00:00"
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@@ -4122,16 +4125,16 @@
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+            "version": "6.2.1",
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@@ -4176,7 +4179,7 @@
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@@ -4202,7 +4205,7 @@
                 "testing",
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-            "time": "2017-05-22T07:45:30+00:00"
+            "time": "2017-06-02T12:24:37+00:00"
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@@ -4878,16 +4881,16 @@
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+            "version": "v3.3.2",
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-                "reference": "1a09124ea479cca85fc66a6f21e59aa952ebed1f"
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@@ -4936,7 +4939,7 @@
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             "homepage": "https://symfony.com",
-            "time": "2017-05-28T11:10:04+00:00"
+            "time": "2017-06-01T14:45:22+00:00"
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