diff --git a/composer.json b/composer.json
index 2ca8450..011e562 100644
--- a/composer.json
+++ b/composer.json
@@ -9,8 +9,8 @@
     ],
     "license" : "Apache-2.0",
     "require": {
-        "hisamu/php-xbase": "*",
-        "ulrichsg/getopt-php": "2.3.*",
+        "hisamu/php-xbase": "2.1.*",
+        "ulrichsg/getopt-php": "4.0.*",
         "ext-mbstring": "*"
     },
     "minimum-stability": "dev"
diff --git a/composer.lock b/composer.lock
index 3fa6dd1..b94c6b6 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,77 +4,100 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "4b149599d17ceb94fc10d95a95ac3169",
+    "content-hash": "42d68277b326fbac07eebed6ebd413d3",
     "packages": [
         {
             "name": "hisamu/php-xbase",
-            "version": "dev-master",
+            "version": "2.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/luads/php-xbase.git",
-                "reference": "26ceae6c7ca67d67132b5c1108e5e2906343631d"
+                "reference": "9247c0438149dc5739cc16d38fd4761e4277aaa0"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/luads/php-xbase/zipball/26ceae6c7ca67d67132b5c1108e5e2906343631d",
-                "reference": "26ceae6c7ca67d67132b5c1108e5e2906343631d",
+                "url": "https://api.github.com/repos/luads/php-xbase/zipball/9247c0438149dc5739cc16d38fd4761e4277aaa0",
+                "reference": "9247c0438149dc5739cc16d38fd4761e4277aaa0",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.0"
+                "ext-iconv": "*",
+                "php": ">=7.1"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^7.0||^8.0||^9.0"
             },
             "type": "library",
-            "autoload": {
-                "psr-0": {
-                    "XBase": "src/"
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.0.x-dev"
                 }
             },
+            "autoload": {
+                "psr-4": {
+                    "XBase\\": "src"
+                },
+                "exclude-from-classmap": [
+                    "/tests"
+                ]
+            },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
                 "MIT"
             ],
             "authors": [
+                {
+                    "name": "Luã de Souza",
+                    "email": "lsouza@codeinc.com.br"
+                },
                 {
                     "name": "Erwin Kooi",
                     "email": "info@cyane.nl"
                 },
                 {
-                    "name": "Luã de Souza",
-                    "email": "lsouza@codeinc.com.br"
+                    "name": "Alexander Strizhak",
+                    "email": "gam6itko@gmail.com"
                 }
             ],
             "description": "A simple parser for *.dbf, *.fpt files using PHP",
-            "homepage": "https://github.com/hisamu/php-xbase",
+            "homepage": "https://github.com/luads/php-xbase",
             "keywords": [
                 "dbase",
+                "dbf",
                 "foxpro"
             ],
-            "time": "2017-01-09T22:28:13+00:00"
+            "support": {
+                "issues": "https://github.com/luads/php-xbase/issues",
+                "source": "https://github.com/luads/php-xbase/tree/2.1.0"
+            },
+            "time": "2021-10-20T10:56:41+00:00"
         },
         {
             "name": "ulrichsg/getopt-php",
-            "version": "2.3.0",
+            "version": "v4.0.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/getopt-php/getopt-php.git",
-                "reference": "a51554a16e206a6642bf1a0d7d1e4378ec2ba980"
+                "reference": "ad9e8cdf1b709caf84ca545ff90bcc7298f0fa5a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/getopt-php/getopt-php/zipball/a51554a16e206a6642bf1a0d7d1e4378ec2ba980",
-                "reference": "a51554a16e206a6642bf1a0d7d1e4378ec2ba980",
+                "url": "https://api.github.com/repos/getopt-php/getopt-php/zipball/ad9e8cdf1b709caf84ca545ff90bcc7298f0fa5a",
+                "reference": "ad9e8cdf1b709caf84ca545ff90bcc7298f0fa5a",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.0"
+                "ext-mbstring": "*",
+                "php": ">=7.1.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "3.7.*"
+                "phpunit/phpunit": "^7.5.20",
+                "squizlabs/php_codesniffer": "^3.5.8"
             },
             "type": "library",
             "autoload": {
-                "psr-0": {
-                    "Ulrichsg\\": "src"
+                "psr-4": {
+                    "GetOpt\\": "src"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -85,11 +108,19 @@
                 {
                     "name": "Ulrich Schmidt-Goertz",
                     "email": "ulrich@schmidt-goertz.de"
+                },
+                {
+                    "name": "Thomas Flori",
+                    "email": "thflori@gmail.com"
                 }
             ],
-            "description": "Command line arguments parser for PHP 5.3",
-            "homepage": "http://ulrichsg.github.io/getopt-php",
-            "time": "2015-03-28T14:09:20+00:00"
+            "description": "Command line arguments parser for PHP 7.1 and above",
+            "homepage": "http://getopt-php.github.io/getopt-php",
+            "support": {
+                "issues": "https://github.com/getopt-php/getopt-php/issues",
+                "source": "https://github.com/getopt-php/getopt-php/tree/v4.0.1"
+            },
+            "time": "2022-01-04T11:01:04+00:00"
         }
     ],
     "packages-dev": [],
@@ -101,5 +132,6 @@
     "platform": {
         "ext-mbstring": "*"
     },
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.2.0"
 }