diff --git a/composer.lock b/composer.lock
index ceac7fce5..0b1e99a1e 100644
--- a/composer.lock
+++ b/composer.lock
@@ -335,16 +335,16 @@
         },
         {
             "name": "phpoffice/phpspreadsheet",
-            "version": "5.0.0",
+            "version": "5.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHPOffice/PhpSpreadsheet.git",
-                "reference": "d88efcac2444cde18e17684178de02b25dff2050"
+                "reference": "fd26e45a814e94ae2aad0df757d9d1739c4bf2e0"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHPOffice/PhpSpreadsheet/zipball/d88efcac2444cde18e17684178de02b25dff2050",
-                "reference": "d88efcac2444cde18e17684178de02b25dff2050",
+                "url": "https://api.github.com/repos/PHPOffice/PhpSpreadsheet/zipball/fd26e45a814e94ae2aad0df757d9d1739c4bf2e0",
+                "reference": "fd26e45a814e94ae2aad0df757d9d1739c4bf2e0",
                 "shasum": ""
             },
             "require": {
@@ -435,9 +435,9 @@
             ],
             "support": {
                 "issues": "https://github.com/PHPOffice/PhpSpreadsheet/issues",
-                "source": "https://github.com/PHPOffice/PhpSpreadsheet/tree/5.0.0"
+                "source": "https://github.com/PHPOffice/PhpSpreadsheet/tree/5.1.0"
             },
-            "time": "2025-08-10T06:18:27+00:00"
+            "time": "2025-09-04T05:34:49+00:00"
         },
         {
             "name": "psr/http-client",