diff --git a/composer.lock b/composer.lock
index d8ac643..fe65aef 100644
--- a/composer.lock
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+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
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+            ],
+            "authors": [
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+                },
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+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill backporting some PHP 5.6+ features to lower PHP versions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "polyfill",
+                "portable",
+                "shim"
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+            "support": {
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+            },
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+                    "type": "custom"
+                },
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+                    "type": "github"
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+        },
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+                "reference": "3fe414077251a81a1b15b1c709faf5c2fbae3d4e",
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+                "php": ">=5.3.3"
+            },
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+                },
+                "classmap": [
+                    "Resources/stubs"
                 ]
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -1517,16 +1821,105 @@
                     "homepage": "https://symfony.com/contributors"
                 }
             ],
-            "description": "Symfony polyfill for the Mbstring extension",
+            "description": "Symfony polyfill backporting some PHP 7.0+ features to lower PHP versions",
             "homepage": "https://symfony.com",
             "keywords": [
                 "compatibility",
-                "mbstring",
                 "polyfill",
                 "portable",
                 "shim"
             ],
-            "time": "2017-06-14T15:44:48+00:00"
+            "support": {
+                "source": "https://github.com/symfony/polyfill-php70/tree/v1.19.0"
+            },
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+                },
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+                    "type": "github"
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+                    "type": "tidelift"
+                }
+            ],
+            "time": "2020-10-23T09:01:57+00:00"
+        },
+        {
+            "name": "symfony/polyfill-util",
+            "version": "v1.19.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-util.git",
+                "reference": "8df0c3e6a4b85df9a5c6f3f2f46fba5c5c47058a"
+            },
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+                "shasum": ""
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+            },
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+                },
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+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
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+            },
+            "autoload": {
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+                    "Symfony\\Polyfill\\Util\\": ""
+                }
+            },
+            "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 utilities for portability of PHP codes",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compat",
+                "compatibility",
+                "polyfill",
+                "shim"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-util/tree/v1.19.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2020-10-21T09:57:48+00:00"
         },
         {
             "name": "symfony/process",
@@ -3369,5 +3762,6 @@
     "platform": {
         "php": ">=5.6.4"
     },
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.2.0"
 }