diff --git a/composer.json b/composer.json
index 3a78e0be..a40c2aed 100644
--- a/composer.json
+++ b/composer.json
@@ -68,7 +68,7 @@
         "mezzio/mezzio-helpers": "^5.16",
         "mezzio/mezzio-laminasviewrenderer": "^2.15",
         "mezzio/mezzio-session-ext": "^1.19",
-        "phpoffice/phpspreadsheet": "^2.1"
+        "phpoffice/phpspreadsheet": "^4.2"
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "@stable",
diff --git a/composer.lock b/composer.lock
index 8885f62b..567cf774 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "4f529c54cac044920eaeeec885cdce2a",
+    "content-hash": "9a74f5251153e5bf2106bcc9b37c587a",
     "packages": [
         {
             "name": "beberlei/doctrineextensions",
@@ -3982,20 +3982,20 @@
         },
         {
             "name": "phpoffice/phpspreadsheet",
-            "version": "2.3.8",
+            "version": "4.2.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHPOffice/PhpSpreadsheet.git",
-                "reference": "7a700683743bf1c4a21837c84b266916f1aa7d25"
+                "reference": "5f6d7410e5fd72cac1aa67d4f05f4fe664d01ba6"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHPOffice/PhpSpreadsheet/zipball/7a700683743bf1c4a21837c84b266916f1aa7d25",
-                "reference": "7a700683743bf1c4a21837c84b266916f1aa7d25",
+                "url": "https://api.github.com/repos/PHPOffice/PhpSpreadsheet/zipball/5f6d7410e5fd72cac1aa67d4f05f4fe664d01ba6",
+                "reference": "5f6d7410e5fd72cac1aa67d4f05f4fe664d01ba6",
                 "shasum": ""
             },
             "require": {
-                "composer/pcre": "^1 || ^2 || ^3",
+                "composer/pcre": "^1||^2||^3",
                 "ext-ctype": "*",
                 "ext-dom": "*",
                 "ext-fileinfo": "*",
@@ -4024,9 +4024,10 @@
                 "mitoteam/jpgraph": "^10.3",
                 "mpdf/mpdf": "^8.1.1",
                 "phpcompatibility/php-compatibility": "^9.3",
-                "phpstan/phpstan": "^1.1",
-                "phpstan/phpstan-phpunit": "^1.0",
-                "phpunit/phpunit": "^9.6 || ^10.5",
+                "phpstan/phpstan": "^1.1 || ^2.0",
+                "phpstan/phpstan-deprecation-rules": "^1.0 || ^2.0",
+                "phpstan/phpstan-phpunit": "^1.0 || ^2.0",
+                "phpunit/phpunit": "^10.5",
                 "squizlabs/php_codesniffer": "^3.7",
                 "tecnickcom/tcpdf": "^6.5"
             },
@@ -4081,9 +4082,9 @@
             ],
             "support": {
                 "issues": "https://github.com/PHPOffice/PhpSpreadsheet/issues",
-                "source": "https://github.com/PHPOffice/PhpSpreadsheet/tree/2.3.8"
+                "source": "https://github.com/PHPOffice/PhpSpreadsheet/tree/4.2.0"
             },
-            "time": "2025-02-08T03:01:45+00:00"
+            "time": "2025-04-17T02:41:45+00:00"
         },
         {
             "name": "psr/cache",
@@ -9613,6 +9614,6 @@
         "ext-pdo": "*",
         "ext-zip": "*"
     },
-    "platform-dev": {},
-    "plugin-api-version": "2.6.0"
+    "platform-dev": [],
+    "plugin-api-version": "2.3.0"
 }