diff --git a/.circleci/config.yml b/.circleci/config.yml
index 1d6bf81..373dfbc 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -141,7 +141,7 @@ jobs:
       tag: << parameters.version >>
     parameters:
       version:
-        default: "7.4"
+        default: "8.3"
         description: The `cimg/php` Docker image version tag.
         type: string
       install-flags:
@@ -154,7 +154,7 @@ jobs:
       - when:
           condition:
             and:
-              - equal: [ "8.1", <<parameters.version>> ]
+              - equal: [ "8.3", <<parameters.version>> ]
               - equal: [ "", <<parameters.install-flags>> ]
           steps:
             - run-phpunit-tests:
@@ -164,7 +164,7 @@ jobs:
           condition:
             not:
               and:
-                - equal: [ "8.1", <<parameters.version>> ]
+                - equal: [ "8.3", <<parameters.version>> ]
                 - equal: [ "", <<parameters.install-flags>> ]
           steps:
             - run-phpunit-tests:
@@ -176,5 +176,5 @@ workflows:
       - matrix-conditions:
           matrix:
             parameters:
-              version: ["8.2", "8.1", "8.0", "7.4"]
+              version: ["8.3", "8.2", "8.1", "8.0", "7.4"]
               install-flags: ["", "--prefer-lowest"]
diff --git a/composer.json b/composer.json
index 7ebb94d..01bc304 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
         "php": ">=7.4",
         "ext-json": "*",
         "fmizzell/maquina": "^1.1.1",
-        "getdkan/contracts": "^1.1.2"
+        "getdkan/contracts": "^1.1.3"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.6",
diff --git a/rector.php b/rector.php
index e9fd419..1ba3e10 100644
--- a/rector.php
+++ b/rector.php
@@ -3,44 +3,24 @@
 declare(strict_types=1);
 
 use Rector\Config\RectorConfig;
-use Rector\Core\ValueObject\PhpVersion;
-use Rector\DeadCode\Rector\ClassMethod\RemoveUselessParamTagRector;
-use Rector\DeadCode\Rector\ClassMethod\RemoveUselessReturnTagRector;
-use Rector\DeadCode\Rector\Property\RemoveUselessVarTagRector;
-use Rector\Php73\Rector\FuncCall\JsonThrowOnErrorRector;
 use Rector\Set\ValueObject\SetList;
-use Rector\TypeDeclaration\Rector\ClassMethod\ArrayShapeFromConstantArrayReturnRector;
-use Rector\TypeDeclaration\Rector\ClassMethod\AddMethodCallBasedStrictParamTypeRector;
 
 return static function (RectorConfig $rectorConfig): void {
     $rectorConfig->paths([
-    __DIR__ . '/src',
-    __DIR__ . '/test',
+        __DIR__ . '/src',
+        __DIR__ . '/test',
+        __DIR__ . '/rector.php',
     ]);
 
-  // Our base version of PHP.
-    $rectorConfig->phpVersion(PhpVersion::PHP_74);
-
     $rectorConfig->sets([
-        SetList::PHP_82,
+        SetList::PHP_74,
         // Please no dead code or unneeded variables.
         SetList::DEAD_CODE,
         // Try to figure out type hints.
         SetList::TYPE_DECLARATION,
     ]);
 
-    $rectorConfig->skip([
-        // Don't throw errors on JSON parse problems. Yet.
-        // @todo Throw errors and deal with them appropriately.
-        JsonThrowOnErrorRector::class,
-        // We like our tags. Please don't remove them.
-        RemoveUselessParamTagRector::class,
-        RemoveUselessReturnTagRector::class,
-        RemoveUselessVarTagRector::class,
-        ArrayShapeFromConstantArrayReturnRector::class,
-        AddMethodCallBasedStrictParamTypeRector::class,
-    ]);
-
+    $rectorConfig->removeUnusedImports();
     $rectorConfig->importNames();
     $rectorConfig->importShortClasses(false);
 };