diff --git a/composer.json b/composer.json
index e77e11f..67115de 100644
--- a/composer.json
+++ b/composer.json
@@ -20,10 +20,10 @@
         "wiki": "https://github.com/uepg/laravel-sybase/wiki"
     },
     "require": {
-        "php": "^5.6.4 || ^7.0 || ^8.0",
+        "php": ">=5.5.9 <7.4",
         "doctrine/dbal": "^2.5",
-        "illuminate/database": "5.4.*|5.5.*|5.6.*|5.7.*|5.8.*|6.*|7.*|8.*|9.*",
-        "illuminate/support": "5.4.*|5.5.*|5.6.*|5.7.*|5.8.*|6.*|7.*|8.*|9.*"
+        "illuminate/database": "5.1.*|5.2.*|5.3.*|5.4.*|5.5.*|5.6.*|5.7.*|5.8.*|6.*|7.*",
+        "illuminate/support": "5.1.*|5.2.*|5.3.*|5.4.*|5.5.*|5.6.*|5.7.*|5.8.*|6.*|7.*"
     },
     "extra": {
         "laravel": {
diff --git a/src/Database/Connection.php b/src/Database/Connection.php
index 58dd798..39db514 100644
--- a/src/Database/Connection.php
+++ b/src/Database/Connection.php
@@ -83,7 +83,7 @@ public function configureExtraSettings($config = [])
                 throw new \Exception('When application encoding is configured, you need to set up application_charset and database_charset');
             }
             $this->applicationCharset = $config['application_charset'];
-            $this->databaseCharset = $config['charset'];
+            $this->databaseCharset = $config['database_charset'];
         }
     }