diff --git a/_define.php b/_define.php
index f0df685..256234b 100644
--- a/_define.php
+++ b/_define.php
@@ -18,7 +18,7 @@ $this->registerModule(
     'improve',
     'Tiny tools to fix things for module devs',
     'Jean-Christian Denis and contributors',
-    '0.7',
+    '0.7.1',
     [
         'requires'    => [['core', '2.19']],
         'permissions' => null,
diff --git a/dcstore.xml b/dcstore.xml
index 7fa5633..aba3419 100644
--- a/dcstore.xml
+++ b/dcstore.xml
@@ -2,10 +2,10 @@
 <modules xmlns:da="http://dotaddict.org/da/">
   <module id="improve">
     <name>improve</name>
-    <version>0.7</version>
+    <version>0.7.1</version>
     <author>Jean-Christian Denis and contributors</author>
     <desc>Tiny tools to fix things for module devs</desc>
-    <file>https://github.com/JcDenis/improve/releases/download/v0.7/plugin-improve.zip</file>
+    <file>https://github.com/JcDenis/improve/releases/download/v0.7.1/plugin-improve.zip</file>
     <da:dcmin>2.19</da:dcmin>
     <da:details>https://github.com/JcDenis/improve</da:details>
     <da:support>https://github.com/JcDenis/improve</da:support>
diff --git a/inc/class.improve.php b/inc/class.improve.php
index 95d1e83..ceab866 100644
--- a/inc/class.improve.php
+++ b/inc/class.improve.php
@@ -295,7 +295,13 @@ class Improve
         return $this->core->adminurl->get('admin.plugin.improve', $params, '&');
     }
 
-    public static function cleanExtensions(string|array $in): array
+    /**
+     * Check and clean file extension
+     *
+     * @param  string|array  $in    Extension(s) to clean
+     * @return array                Cleaned extension(s)
+     */
+    public static function cleanExtensions($in): array
     {
         $out = [];
         if (!is_array($in)) {
@@ -405,7 +411,7 @@ class ImproveDefinition
      *
      * @return  boolean                 Success
      */
-    private function registerModule(string $name, string $desc, string $author, string $version, string|array $properties = []): bool // @phpstan-ignore-line
+    private function registerModule(string $name, string $desc, string $author, string $version, $properties = []): bool // @phpstan-ignore-line
     {
         if (!is_array($properties)) {
             $args       = func_get_args();