diff --git a/composer.lock b/composer.lock
index 412980d..03a237e 100644
--- a/composer.lock
+++ b/composer.lock
@@ -9,16 +9,16 @@
     "packages-dev": [
         {
             "name": "phpstan/phpstan",
-            "version": "2.1.12",
+            "version": "2.1.13",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "96dde49e967c0c22812bcfa7bda4ff82c09f3b0c"
+                "reference": "e55e03e6d4ac49cd1240907e5b08e5cd378572a9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/96dde49e967c0c22812bcfa7bda4ff82c09f3b0c",
-                "reference": "96dde49e967c0c22812bcfa7bda4ff82c09f3b0c",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/e55e03e6d4ac49cd1240907e5b08e5cd378572a9",
+                "reference": "e55e03e6d4ac49cd1240907e5b08e5cd378572a9",
                 "shasum": ""
             },
             "require": {
@@ -63,7 +63,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2025-04-16T13:19:18+00:00"
+            "time": "2025-04-27T12:28:25+00:00"
         },
         {
             "name": "phpstan/phpstan-strict-rules",
@@ -200,7 +200,7 @@
     ],
     "aliases": [],
     "minimum-stability": "stable",
-    "stability-flags": {},
+    "stability-flags": [],
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
@@ -215,5 +215,5 @@
         "ext-tokenizer": "*",
         "ext-xmlwriter": "*"
     },
-    "plugin-api-version": "2.6.0"
+    "plugin-api-version": "2.3.0"
 }
diff --git a/tests/test.php b/tests/test.php
index 70fa78e..92262a8 100644
--- a/tests/test.php
+++ b/tests/test.php
@@ -21,8 +21,11 @@
 
 	date_default_timezone_set('UTC');
 	assert($xlsxFastEditor->getWorkbookDateSystem() === 1900);
+	// @phpstan-ignore staticMethod.internal
 	assert(XlsxFastEditor::excelDateToDateTime(0.5, 1900)->format('c') === '1900-01-01T12:00:00+00:00');
+	// @phpstan-ignore staticMethod.internal
 	assert(XlsxFastEditor::excelDateToDateTime(32, 1900)->format('c') === '1900-02-01T00:00:00+00:00');
+	// @phpstan-ignore staticMethod.internal
 	assert(XlsxFastEditor::excelDateToDateTime(44865, 1904)->format('c') === '2026-11-01T00:00:00+00:00');
 
 	$sheet1 = $xlsxFastEditor->getWorksheetNumber('Sheet1');
@@ -82,6 +85,7 @@
 	}
 	assert($ex instanceof \InvalidArgumentException);
 
+	// @phpstan-ignore method.internal
 	$cellD4 = $row4->getCell('D4');
 	assert($cellD4 !== null);
 	assert($cellD4->getPreviousCell()?->getNextCell()?->name() === 'D4');