1 files changed, 2 insertions, 2 deletions
diff --git a/src/bin/rr b/src/bin/rr
index 633b5a25..a3c613b1 100644
--- a/src/bin/rr
+++ b/src/bin/rr
@@ -146,7 +146,7 @@ class RRHelper
      * @param string $target
      * @throws Exception
      */
-    protected function extractZIP(string $archive, string $target)
+    protected static function extractZIP(string $archive, string $target)
     {
         $zip = new ZipArchive();
         $zip->open($archive);
@@ -173,7 +173,7 @@ class RRHelper
      * @param string $target
      * @throws Exception
      */
-    protected function extractTAR(string $archive, string $target)
+    protected static function extractTAR(string $archive, string $target)
     {
         $arch = new PharData($archive);
         $arch->extractTo('./', self::getSignature() . '/rr');