diff --git a/composer.lock b/composer.lock
index d5bce810..1a42db6b 100644
--- a/composer.lock
+++ b/composer.lock
@@ -3307,16 +3307,16 @@
         },
         {
             "name": "phpoffice/phpspreadsheet",
-            "version": "5.0.0",
+            "version": "5.5.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PHPOffice/PhpSpreadsheet.git",
-                "reference": "d88efcac2444cde18e17684178de02b25dff2050"
+                "reference": "eecd31b885a1c8192f12738130f85bbc6e8906ba"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PHPOffice/PhpSpreadsheet/zipball/d88efcac2444cde18e17684178de02b25dff2050",
-                "reference": "d88efcac2444cde18e17684178de02b25dff2050",
+                "url": "https://api.github.com/repos/PHPOffice/PhpSpreadsheet/zipball/eecd31b885a1c8192f12738130f85bbc6e8906ba",
+                "reference": "eecd31b885a1c8192f12738130f85bbc6e8906ba",
                 "shasum": ""
             },
             "require": {
@@ -3324,6 +3324,7 @@
                 "ext-ctype": "*",
                 "ext-dom": "*",
                 "ext-fileinfo": "*",
+                "ext-filter": "*",
                 "ext-gd": "*",
                 "ext-iconv": "*",
                 "ext-libxml": "*",
@@ -3338,15 +3339,14 @@
                 "markbaker/complex": "^3.0",
                 "markbaker/matrix": "^3.0",
                 "php": "^8.1",
-                "psr/http-client": "^1.0",
-                "psr/http-factory": "^1.0",
                 "psr/simple-cache": "^1.0 || ^2.0 || ^3.0"
             },
             "require-dev": {
                 "dealerdirect/phpcodesniffer-composer-installer": "dev-main",
                 "dompdf/dompdf": "^2.0 || ^3.0",
+                "ext-intl": "*",
                 "friendsofphp/php-cs-fixer": "^3.2",
-                "mitoteam/jpgraph": "^10.3",
+                "mitoteam/jpgraph": "^10.5",
                 "mpdf/mpdf": "^8.1.1",
                 "phpcompatibility/php-compatibility": "^9.3",
                 "phpstan/phpstan": "^1.1 || ^2.0",
@@ -3358,7 +3358,7 @@
             },
             "suggest": {
                 "dompdf/dompdf": "Option for rendering PDF with PDF Writer",
-                "ext-intl": "PHP Internationalization Functions",
+                "ext-intl": "PHP Internationalization Functions, required for NumberFormat Wizard and StringHelper::setLocale()",
                 "mitoteam/jpgraph": "Option for rendering charts, or including charts with PDF or HTML Writers",
                 "mpdf/mpdf": "Option for rendering PDF with PDF Writer",
                 "tecnickcom/tcpdf": "Option for rendering PDF with PDF Writer"
@@ -3391,6 +3391,9 @@
                 },
                 {
                     "name": "Adrien Crivelli"
+                },
+                {
+                    "name": "Owen Leibman"
                 }
             ],
             "description": "PHPSpreadsheet - Read, Create and Write Spreadsheet documents in PHP - Spreadsheet engine",
@@ -3407,9 +3410,9 @@
             ],
             "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/5.5.0"
             },
-            "time": "2025-08-10T06:18:27+00:00"
+            "time": "2026-03-01T00:58:56+00:00"
         },
         {
             "name": "phpoffice/phpword",