diff --git a/composer.json b/composer.json
index abf2e996b..cb3828752 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
 		"phpunit/phpunit": "^9"
 	},
 	"require": {
-		"phpoffice/phpspreadsheet": "^3.3"
+		"phpoffice/phpspreadsheet": "^4.0"
 	},
 	"extra": {
 		"bamarni-bin": {
diff --git a/composer.lock b/composer.lock
index 6b73dcdfa..0a4a802fa 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": "068bdff1f7a79e608f7e77f14392f7e4",
+    "content-hash": "15fde926f2ba4a22bfc0cc640372fe7a",
     "packages": [
         {
             "name": "composer/pcre",
@@ -271,20 +271,20 @@
         },
         {
             "name": "phpoffice/phpspreadsheet",
-            "version": "3.9.0",
+            "version": "4.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHPOffice/PhpSpreadsheet.git",
-                "reference": "414f8a2aa1d8b974b39f577c0677d5ebc96fab36"
+                "reference": "2d4b9f3582102aafb6b1378fff8a20eeeacfb31c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHPOffice/PhpSpreadsheet/zipball/414f8a2aa1d8b974b39f577c0677d5ebc96fab36",
-                "reference": "414f8a2aa1d8b974b39f577c0677d5ebc96fab36",
+                "url": "https://api.github.com/repos/PHPOffice/PhpSpreadsheet/zipball/2d4b9f3582102aafb6b1378fff8a20eeeacfb31c",
+                "reference": "2d4b9f3582102aafb6b1378fff8a20eeeacfb31c",
                 "shasum": ""
             },
             "require": {
-                "composer/pcre": "^3.3",
+                "composer/pcre": "^1||^2||^3",
                 "ext-ctype": "*",
                 "ext-dom": "*",
                 "ext-fileinfo": "*",
@@ -370,9 +370,9 @@
             ],
             "support": {
                 "issues": "https://github.com/PHPOffice/PhpSpreadsheet/issues",
-                "source": "https://github.com/PHPOffice/PhpSpreadsheet/tree/3.9.0"
+                "source": "https://github.com/PHPOffice/PhpSpreadsheet/tree/4.0.0"
             },
-            "time": "2025-01-26T05:10:24+00:00"
+            "time": "2025-02-08T02:28:25+00:00"
         },
         {
             "name": "psr/http-client",