diff --git a/phar.php b/phar.php
index dd2c82a..a54f77b 100644
--- a/phar.php
+++ b/phar.php
@@ -1,4 +1,4 @@
-<?php
+<?php declare(strict_types=1);
 
 namespace danog\MadelineProto;
 
@@ -40,7 +40,7 @@ class Installer
      */
     public function __construct()
     {
-        if (PHP_MAJOR_VERSION < 8 || PHP_MINOR_VERSION < 1) {
+        if ((PHP_MAJOR_VERSION === 8 && PHP_MINOR_VERSION < 1) || PHP_MAJOR_VERSION <= 7) {
             die('MadelineProto requires at least PHP 8.1.'.PHP_EOL);
         }
         if (PHP_INT_SIZE < 8) {
@@ -83,11 +83,11 @@ class Installer
     /**
      * Extract composer package versions from phar.
      *
-     * @param string|null $release
      * @return array<string, string>
      */
-    private static function extractVersions($release)
+    private static function extractVersions(?string $release): array
     {
+        $release ??= '';
         $phar = "madeline-$release.phar";
         $packages = ['danog/madelineproto' => 'old'];
         if (!\file_exists("phar://$phar/vendor/composer/installed.json")) {
@@ -111,16 +111,10 @@ class Installer
         return $packages;
     }
 
-
     /**
      * Report installs to composer.
-     *
-     * @param string $local_release
-     * @param string $remote_release
-     *
-     * @return void
      */
-    private static function reportComposer($local_release, $remote_release)
+    private static function reportComposer(?string $local_release, ?string $remote_release): void
     {
         $previous = self::extractVersions($local_release);
         $current = self::extractVersions($remote_release);
@@ -135,11 +129,7 @@ class Installer
             ];
         }
 
-        if (\defined('HHVM_VERSION')) {
-            $phpVersion = 'HHVM '.HHVM_VERSION;
-        } else {
-            $phpVersion = 'PHP '.PHP_MAJOR_VERSION.'.'.PHP_MINOR_VERSION.'.'.PHP_RELEASE_VERSION;
-        }
+        $phpVersion = 'PHP '.PHP_MAJOR_VERSION.'.'.PHP_MINOR_VERSION.'.'.PHP_RELEASE_VERSION;
         $opts = ['http' =>
             [
                 'method' => 'POST',
@@ -164,13 +154,13 @@ class Installer
 
     /**
      * Load phar file.
-     *
-     * @param string|null $release
-     * @return mixed
      */
-    private static function load($release)
+    private static function load(?string $release): mixed
     {
         if ($release === null) {
+            if ((PHP_MAJOR_VERSION === 8 && PHP_MINOR_VERSION < 1) || PHP_MAJOR_VERSION <= 7) {
+                throw new \Exception('MadelineProto requires at least PHP 8.1.');
+            }
             throw new \Exception('Could not download MadelineProto, please check your internet connection and PHP configuration!');
         }
         $phar = "madeline-$release.phar";
@@ -188,21 +178,16 @@ class Installer
     /**
      * Unlock phar.
      *
-     * @return void
      */
-    public static function unlock()
+    public static function unlock(): void
     {
         \flock(self::$lock, LOCK_UN);
     }
 
     /**
      * Lock installer.
-     *
-     * @param string $version Version file to lock
-     *
-     * @return bool
      */
-    private function lock($version)
+    private function lock(string $version): bool
     {
         if ($this->lockInstaller) {
             return true;
@@ -213,8 +198,6 @@ class Installer
 
     /**
      * Install MadelineProto.
-     *
-     * @return mixed
      */
     public function install()
     {
diff --git a/release71 b/release71
index 95c05ac..214854a 100644
--- a/release71
+++ b/release71
@@ -1 +1 @@
-37fdcd57a3e8676f58e327f28acb39b4a127229b-71
\ No newline at end of file
+32cf35e179916a63e1cafb45b899584712f00201-71
\ No newline at end of file
diff --git a/release72 b/release72
index cb6657c..9ffb2e2 100644
--- a/release72
+++ b/release72
@@ -1 +1 @@
-37fdcd57a3e8676f58e327f28acb39b4a127229b-72
\ No newline at end of file
+32cf35e179916a63e1cafb45b899584712f00201-72
\ No newline at end of file
diff --git a/release73 b/release73
index 85c1ae6..24d9080 100644
--- a/release73
+++ b/release73
@@ -1 +1 @@
-37fdcd57a3e8676f58e327f28acb39b4a127229b-73
\ No newline at end of file
+32cf35e179916a63e1cafb45b899584712f00201-73
\ No newline at end of file
diff --git a/release74 b/release74
index f602af1..f3d3d2b 100644
--- a/release74
+++ b/release74
@@ -1 +1 @@
-37fdcd57a3e8676f58e327f28acb39b4a127229b-74
\ No newline at end of file
+32cf35e179916a63e1cafb45b899584712f00201-74
\ No newline at end of file
diff --git a/release80 b/release80
index b94115a..69cf345 100644
--- a/release80
+++ b/release80
@@ -1 +1 @@
-37fdcd57a3e8676f58e327f28acb39b4a127229b-80
\ No newline at end of file
+32cf35e179916a63e1cafb45b899584712f00201-80
\ No newline at end of file
diff --git a/release81 b/release81
index a2f8cda..a8cc800 100644
--- a/release81
+++ b/release81
@@ -1 +1 @@
-37fdcd57a3e8676f58e327f28acb39b4a127229b-81
\ No newline at end of file
+32cf35e179916a63e1cafb45b899584712f00201-81
\ No newline at end of file