diff --git a/composer.json b/composer.json
index 114d990e..219f4b3b 100644
--- a/composer.json
+++ b/composer.json
@@ -42,7 +42,7 @@
     },
 
 	"require-dev" : {
-		"phpunit/phpunit" : "6.*"
+		"phpunit/phpunit" : "7.*"
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diff --git a/composer.lock b/composer.lock
index 2805f8e2..5fead0de 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,10 +1,10 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
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@@ -17,8 +17,7 @@
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@@ -36,8 +35,7 @@
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@@ -96,8 +92,7 @@
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@@ -107,21 +102,21 @@
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                 "url": "https://github.com/dapphp/securimage.git",
-                "reference": "6eea2798f56540fa88356c98f282d6391a72be15"
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-                "reference": "6eea2798f56540fa88356c98f282d6391a72be15",
+                "url": "https://api.github.com/repos/dapphp/securimage/zipball/1ecb884797c66e01a875c058def46c85aecea45b",
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+                "php": ">=5.4"
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@@ -136,7 +131,7 @@
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-                "BSD"
+                "BSD-3-Clause"
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                 {
@@ -147,10 +142,12 @@
             "description": "PHP CAPTCHA Library",
             "homepage": "https://www.phpcaptcha.org",
             "keywords": [
+                "Forms",
+                "anti-spam",
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                 "security"
             ],
-            "time": "2017-11-21T02:29:19+00:00"
+            "time": "2018-03-09T06:07:41+00:00"
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@@ -248,24 +245,26 @@
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+                "friendsofphp/php-cs-fixer": "^2.2.20|^2.15",
+                "php-coveralls/php-coveralls": "^2.1",
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@@ -277,15 +276,15 @@
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-            "description": "Client library for reCAPTCHA, a free service that protect websites from spam and abuse.",
-            "homepage": "http://www.google.com/recaptcha/",
+            "description": "Client library for reCAPTCHA, a free service that protects websites from spam and abuse.",
+            "homepage": "https://www.google.com/recaptcha/",
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-            "time": "2017-03-09T18:57:45+00:00"
+            "time": "2019-05-24T12:37:13+00:00"
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@@ -342,32 +341,34 @@
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-                "squizlabs/php_codesniffer": "~2.0"
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@@ -387,34 +388,37 @@
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+            "homepage": "https://www.doctrine-project.org/projects/instantiator.html",
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-            "time": "2015-06-14T21:17:01+00:00"
+            "time": "2019-07-02T13:37:32+00:00"
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@@ -437,7 +441,7 @@
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-            "time": "2017-10-19T19:58:43+00:00"
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@@ -445,18 +449,18 @@
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                 "ext-phar": "*",
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@@ -492,20 +496,20 @@
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-            "time": "2017-04-07T07:07:10+00:00"
+            "time": "2018-07-08T19:23:20+00:00"
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@@ -539,7 +543,7 @@
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@@ -597,16 +601,16 @@
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@@ -644,7 +648,7 @@
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-            "time": "2017-11-30T07:14:17+00:00"
+            "time": "2019-04-30T17:48:53+00:00"
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@@ -699,34 +703,34 @@
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-                "sebastian/comparator": "^1.1|^2.0",
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-                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.5"
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+                "psr-4": {
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@@ -754,44 +758,44 @@
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-            "time": "2018-02-19T10:16:54+00:00"
+            "time": "2019-06-13T12:50:23+00:00"
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-                "reference": "982ce790a6f31b8f1319a15d86e4614b109af25e"
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@@ -817,29 +821,32 @@
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-            "time": "2017-12-07T10:13:30+00:00"
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@@ -854,7 +861,7 @@
             "authors": [
                 {
                     "name": "Sebastian Bergmann",
-                    "email": "sb@sebastian-bergmann.de",
+                    "email": "sebastian@phpunit.de",
                     "role": "lead"
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@@ -864,7 +871,7 @@
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-            "time": "2017-11-27T13:52:08+00:00"
+            "time": "2019-07-02T07:44:20+00:00"
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@@ -909,28 +916,28 @@
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-            "version": "1.0.x-dev",
+            "version": "dev-master",
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@@ -1663,7 +1617,7 @@
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-            "time": "2016-10-03T07:43:09+00:00"
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@@ -1709,17 +1663,75 @@
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+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
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+            "authors": [
+                {
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+                    "homepage": "https://symfony.com/contributors"
+                },
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+                    "name": "Gert de Pagter",
+                    "email": "BackEndTea@gmail.com"
+                }
+            ],
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+            "homepage": "https://symfony.com",
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+                "ctype",
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+            "time": "2019-02-06T07:57:58+00:00"
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@@ -1746,24 +1758,25 @@
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+            "time": "2019-06-13T22:48:21+00:00"
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@@ -1796,7 +1809,7 @@
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-            "time": "2018-01-29T19:49:41+00:00"
+            "time": "2018-12-25T11:19:39+00:00"
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@@ -1808,7 +1821,9 @@
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     "prefer-lowest": false,
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-        "php": ">=7.0"
+        "php": ">=7.1",
+        "ext-pdo": "*",
+        "ext-json": "*"
     },
     "platform-dev": []
 }