diff --git a/composer.json b/composer.json
index 0f0506f5..54dbb6ce 100644
--- a/composer.json
+++ b/composer.json
@@ -30,7 +30,7 @@
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+        "php": "^7.2 || ^8.0"
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diff --git a/composer.lock b/composer.lock
index 80debadd..aaf1b99b 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
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@@ -682,231 +682,6 @@
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-            "authors": [
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-            "homepage": "http://www.phpdoc.org",
-            "keywords": [
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-                "phpdoc",
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-            "description": "A PSR-5 based resolver of Class names, Types and Structural Element Names",
-            "support": {
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-                    "Prophecy\\": "src/Prophecy"
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-            "license": [
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-                    "email": "ever.zet@gmail.com",
-                    "homepage": "http://everzet.com"
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-                    "name": "Marcello Duarte",
-                    "email": "marcello.duarte@gmail.com"
-                }
-            ],
-            "description": "Highly opinionated mocking framework for PHP 5.3+",
-            "homepage": "https://github.com/phpspec/prophecy",
-            "keywords": [
-                "Double",
-                "Dummy",
-                "fake",
-                "mock",
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@@ -1206,16 +981,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "8.5.19",
+            "version": "8.5.29",
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                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "496281b64ec781856ed0a583483b5923b4033722"
+                "reference": "e8c563c47a9a303662955518ca532b022b337f4d"
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-                "reference": "496281b64ec781856ed0a583483b5923b4033722",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/e8c563c47a9a303662955518ca532b022b337f4d",
+                "reference": "e8c563c47a9a303662955518ca532b022b337f4d",
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@@ -1230,7 +1005,6 @@
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                 "php": ">=7.2",
-                "phpspec/prophecy": "^1.10.3",
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                 "phpunit/php-file-iterator": "^2.0.4",
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@@ -1245,9 +1019,6 @@
                 "sebastian/type": "^1.1.3",
                 "sebastian/version": "^2.0.1"
             },
-            "require-dev": {
-                "ext-pdo": "*"
-            },
             "suggest": {
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@@ -1287,11 +1058,11 @@
             ],
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/8.5.19"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/8.5.29"
             },
             "funding": [
                 {
-                    "url": "https://phpunit.de/donate.html",
+                    "url": "https://phpunit.de/sponsors.html",
                     "type": "custom"
                 },
                 {
@@ -1299,7 +1070,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2021-07-31T15:15:06+00:00"
+            "time": "2022-08-22T13:59:39+00:00"
         },
         {
             "name": "predis/predis",
@@ -3831,64 +3602,6 @@
                 }
             ],
             "time": "2021-07-28T10:34:58+00:00"
-        },
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-                    "Webmozart\\Assert\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Bernhard Schussek",
-                    "email": "bschussek@gmail.com"
-                }
-            ],
-            "description": "Assertions to validate method input/output with nice error messages.",
-            "keywords": [
-                "assert",
-                "check",
-                "validate"
-            ],
-            "support": {
-                "issues": "https://github.com/webmozarts/assert/issues",
-                "source": "https://github.com/webmozarts/assert/tree/1.10.0"
-            },
-            "time": "2021-03-09T10:59:23+00:00"
         }
     ],
     "aliases": [],
@@ -3899,12 +3612,12 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": "^7.2 || 8.0.*"
+        "php": "^7.2 || ^8.0"
     },
     "platform-dev": {
         "ext-dom": "*",
         "ext-curl": "*",
         "ext-json": "*"
     },
-    "plugin-api-version": "2.1.0"
+    "plugin-api-version": "2.6.0"
 }
diff --git a/src/OAuth/OAuth2/Service/Yandex.php b/src/OAuth/OAuth2/Service/Yandex.php
index 8294d5c8..667355fd 100644
--- a/src/OAuth/OAuth2/Service/Yandex.php
+++ b/src/OAuth/OAuth2/Service/Yandex.php
@@ -24,7 +24,7 @@ public function __construct(
         ClientInterface $httpClient,
         TokenStorageInterface $storage,
         $scopes = array(),
-        UriInterface $baseApiUri = null
+        ?UriInterface $baseApiUri = null
     ) {
         parent::__construct($credentials, $httpClient, $storage, $scopes, $baseApiUri);