diff --git a/composer.lock b/composer.lock
old mode 100755
new mode 100644
index 41b2433..0cebea4
--- a/composer.lock
+++ b/composer.lock
@@ -1,10 +1,10 @@
 {
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         "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",
         "This file is @generated automatically"
     ],
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@@ -618,16 +618,16 @@
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-            "version": "v2.0.10",
+            "version": "v2.0.20",
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-                "reference": "634bae8e911eefa89c1abfbf1b66da679ac8f54d"
+                "reference": "0f1f60250fccffeaf5dda91eea1c018aed1adc2a"
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-                "reference": "634bae8e911eefa89c1abfbf1b66da679ac8f54d",
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             "require": {
@@ -659,10 +659,16 @@
             "description": "PHP 5.x polyfill for random_bytes() and random_int() from PHP 7",
             "keywords": [
                 "csprng",
+                "polyfill",
                 "pseudorandom",
                 "random"
             ],
-            "time": "2017-03-13T16:27:32+00:00"
+            "support": {
+                "email": "info@paragonie.com",
+                "issues": "https://github.com/paragonie/random_compat/issues",
+                "source": "https://github.com/paragonie/random_compat"
+            },
+            "time": "2021-04-17T09:33:01+00:00"
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@@ -1236,31 +1242,27 @@
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+            "version": "v3.4.47",
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                 "php": "^5.5.9|>=7.0.8",
-                "symfony/polyfill-mbstring": "~1.1"
+                "symfony/polyfill-mbstring": "~1.1",
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             "require-dev": {
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+                "symfony/expression-language": "~2.8|~3.0|~4.0"
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@@ -1285,7 +1287,24 @@
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             "homepage": "https://symfony.com",
-            "time": "2017-09-06T17:07:39+00:00"
+            "support": {
+                "source": "https://github.com/symfony/http-foundation/tree/v3.4.47"
+            },
+            "funding": [
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+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
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@@ -1375,16 +1394,16 @@
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@@ -1396,7 +1415,11 @@
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+                    "dev-main": "1.19-dev"
+                },
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+                    "url": "https://github.com/symfony/polyfill"
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@@ -1430,7 +1453,104 @@
                 "portable",
                 "shim"
             ],
-            "time": "2017-06-14T15:44:48+00:00"
+            "support": {
+                "source": "https://github.com/symfony/polyfill-mbstring/tree/v1.19.0"
+            },
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+                    "url": "https://symfony.com/sponsor",
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+                },
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+                },
+                "files": [
+                    "bootstrap.php"
+                ],
+                "classmap": [
+                    "Resources/stubs"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill backporting some PHP 7.0+ features to lower PHP versions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "support": {
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+            },
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@@ -1799,5 +1919,6 @@
     "platform": {
         "php": ">=5.4.0"
     },
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.0.0"
 }