diff --git a/composer.json b/composer.json
index 775763f58..0825a5b8d 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
     ],
     "config": {
         "platform": {
-            "php" : "8.1.99"
+            "php": "8.1.99"
         },
         "process-timeout": 600,
         "sort-packages": true,
@@ -120,7 +120,8 @@
     "autoload-dev": {
         "psr-4": {
             "PhpOffice\\PhpSpreadsheetTests\\": "tests/PhpSpreadsheetTests",
-            "PhpOffice\\PhpSpreadsheetInfra\\": "infra"
+            "PhpOffice\\PhpSpreadsheetInfra\\": "infra",
+            "PhpOffice\\PhpSpreadsheetBenchmarks\\": "tests/Benchmark"
         }
     }
 }
diff --git a/tests/PhpSpreadsheetTests/Benchmark/SpreadsheetCopyBenchmark.php b/tests/Benchmark/SpreadsheetCopyBenchmark.php
similarity index 99%
rename from tests/PhpSpreadsheetTests/Benchmark/SpreadsheetCopyBenchmark.php
rename to tests/Benchmark/SpreadsheetCopyBenchmark.php
index dde8c044f..8d37aee20 100644
--- a/tests/PhpSpreadsheetTests/Benchmark/SpreadsheetCopyBenchmark.php
+++ b/tests/Benchmark/SpreadsheetCopyBenchmark.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace PhpOffice\PhpSpreadsheetTests\Benchmark;
+namespace PhpOffice\PhpSpreadsheetBenchmarks;
 
 use PhpOffice\PhpSpreadsheet\Spreadsheet;
 use PhpOffice\PhpSpreadsheet\Style\Border;