diff --git a/composer.lock b/composer.lock
index 30290b6f9..06c4fe5bc 100644
--- a/composer.lock
+++ b/composer.lock
@@ -332,16 +332,16 @@
         },
         {
             "name": "phpoffice/phpspreadsheet",
-            "version": "5.8.0",
+            "version": "5.8.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHPOffice/PhpSpreadsheet.git",
-                "reference": "01964d92536edf1a3a874b9580a52824bebf6fbb"
+                "reference": "d368eec97b371589068255c5b1e0edf0e4403bed"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHPOffice/PhpSpreadsheet/zipball/01964d92536edf1a3a874b9580a52824bebf6fbb",
-                "reference": "01964d92536edf1a3a874b9580a52824bebf6fbb",
+                "url": "https://api.github.com/repos/PHPOffice/PhpSpreadsheet/zipball/d368eec97b371589068255c5b1e0edf0e4403bed",
+                "reference": "d368eec97b371589068255c5b1e0edf0e4403bed",
                 "shasum": ""
             },
             "require": {
@@ -435,9 +435,9 @@
             ],
             "support": {
                 "issues": "https://github.com/PHPOffice/PhpSpreadsheet/issues",
-                "source": "https://github.com/PHPOffice/PhpSpreadsheet/tree/5.8.0"
+                "source": "https://github.com/PHPOffice/PhpSpreadsheet/tree/5.8.1"
             },
-            "time": "2026-06-07T03:51:10+00:00"
+            "time": "2026-07-12T20:08:02+00:00"
         },
         {
             "name": "psr/http-message",