diff --git a/.gitignore b/.gitignore
index 213bf7f..fb9ae2f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 *.phar
 vendor
+composer.lock
\ No newline at end of file
diff --git a/composer.json b/composer.json
index 8df488e..c7dfd27 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
     "require": {
         "php": ">=5.3",
         "fluent/logger": "0.3.*",
-        "monolog/monolog": ">=1.6,<1.11"
+        "monolog/monolog": "~1.6"
     },
     "autoload": {
         "psr-0": {
diff --git a/composer.lock b/composer.lock
deleted file mode 100644
index ed26a41..0000000
--- a/composer.lock
+++ /dev/null
@@ -1,178 +0,0 @@
-{
-    "_readme": [
-        "This file locks the dependencies of your project to a known state",
-        "Read more about it at http://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
-        "This file is @generated automatically"
-    ],
-    "hash": "84aa2cf5d648f16a33df85352c1bb235",
-    "packages": [
-        {
-            "name": "fluent/logger",
-            "version": "v0.3.8",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/fluent/fluent-logger-php.git",
-                "reference": "245f3942608185dcd9d973e11bfd2ab4d796380c"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/fluent/fluent-logger-php/zipball/245f3942608185dcd9d973e11bfd2ab4d796380c",
-                "reference": "245f3942608185dcd9d973e11bfd2ab4d796380c",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.3.0"
-            },
-            "type": "library",
-            "autoload": {
-                "psr-0": {
-                    "Fluent": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "Apache"
-            ],
-            "authors": [
-                {
-                    "name": "Shuhei Tanuma",
-                    "email": "chobieee@gmail.com"
-                },
-                {
-                    "name": "Sotaro Karasawa",
-                    "email": "sotarok@crocos.co.jp"
-                }
-            ],
-            "description": "distributed logging for PHP 5.3",
-            "homepage": "http://github.com/fluent/fluent-logger-php",
-            "keywords": [
-                "log",
-                "logging"
-            ],
-            "time": "2014-07-15 12:39:13"
-        },
-        {
-            "name": "monolog/monolog",
-            "version": "1.10.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/Seldaek/monolog.git",
-                "reference": "25b16e801979098cb2f120e697bfce454b18bf23"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/Seldaek/monolog/zipball/25b16e801979098cb2f120e697bfce454b18bf23",
-                "reference": "25b16e801979098cb2f120e697bfce454b18bf23",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.3.0",
-                "psr/log": "~1.0"
-            },
-            "require-dev": {
-                "aws/aws-sdk-php": "~2.4, >2.4.8",
-                "doctrine/couchdb": "~1.0@dev",
-                "graylog2/gelf-php": "~1.0",
-                "phpunit/phpunit": "~3.7.0",
-                "raven/raven": "~0.5",
-                "ruflin/elastica": "0.90.*"
-            },
-            "suggest": {
-                "aws/aws-sdk-php": "Allow sending log messages to AWS services like DynamoDB",
-                "doctrine/couchdb": "Allow sending log messages to a CouchDB server",
-                "ext-amqp": "Allow sending log messages to an AMQP server (1.0+ required)",
-                "ext-mongo": "Allow sending log messages to a MongoDB server",
-                "graylog2/gelf-php": "Allow sending log messages to a GrayLog2 server",
-                "raven/raven": "Allow sending log messages to a Sentry server",
-                "rollbar/rollbar": "Allow sending log messages to Rollbar",
-                "ruflin/elastica": "Allow sending log messages to an Elastic Search server"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.10.x-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Monolog\\": "src/Monolog"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Jordi Boggiano",
-                    "email": "j.boggiano@seld.be",
-                    "homepage": "http://seld.be",
-                    "role": "Developer"
-                }
-            ],
-            "description": "Sends your logs to files, sockets, inboxes, databases and various web services",
-            "homepage": "http://github.com/Seldaek/monolog",
-            "keywords": [
-                "log",
-                "logging",
-                "psr-3"
-            ],
-            "time": "2014-06-04 16:30:04"
-        },
-        {
-            "name": "psr/log",
-            "version": "1.0.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/php-fig/log.git",
-                "reference": "fe0936ee26643249e916849d48e3a51d5f5e278b"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/php-fig/log/zipball/fe0936ee26643249e916849d48e3a51d5f5e278b",
-                "reference": "fe0936ee26643249e916849d48e3a51d5f5e278b",
-                "shasum": ""
-            },
-            "type": "library",
-            "autoload": {
-                "psr-0": {
-                    "Psr\\Log\\": ""
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "PHP-FIG",
-                    "homepage": "http://www.php-fig.org/"
-                }
-            ],
-            "description": "Common interface for logging libraries",
-            "keywords": [
-                "log",
-                "psr",
-                "psr-3"
-            ],
-            "time": "2012-12-21 11:40:51"
-        }
-    ],
-    "packages-dev": [
-
-    ],
-    "aliases": [
-
-    ],
-    "minimum-stability": "stable",
-    "stability-flags": [
-
-    ],
-    "prefer-stable": false,
-    "platform": {
-        "php": ">=5.3"
-    },
-    "platform-dev": [
-
-    ]
-}