diff --git a/composer.json b/composer.json
index ca3ae58..83e87fa 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
         }
     ],
     "require": {
-        "php": ">=5.6.0",
+        "php": ">=7.4.0",
         "ext-mbstring": "*",
         "ext-pcre": "*"
     },
diff --git a/src/Parser.php b/src/Parser.php
index 439a312..e80a6a6 100644
--- a/src/Parser.php
+++ b/src/Parser.php
@@ -129,7 +129,7 @@ public function __construct($format = 'object', $path = null)
      */
     public function setFormat($format = 'object')
     {
-        $this->format = filter_var($format, FILTER_SANITIZE_STRING);
+        $this->format = filter_var($format, FILTER_UNSAFE_RAW);
     }
 
     /**
@@ -142,7 +142,7 @@ public function setCachePath($path = null)
         if (is_null($path)) {
             $this->path = sys_get_temp_dir();
         } else {
-            $this->path = filter_var($path, FILTER_SANITIZE_STRING);
+            $this->path = filter_var($path, FILTER_UNSAFE_RAW);
         }
     }
 
@@ -396,7 +396,7 @@ private function catchTlds($existFile)
      */
     public function setEncodng($encoding = 'utf-8')
     {
-        $this->encoding = filter_var($encoding, FILTER_SANITIZE_STRING);
+        $this->encoding = filter_var($encoding, FILTER_UNSAFE_RAW);
     }
 
     /**