diff --git a/composer.json b/composer.json
index b74891a..438a11e 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,7 @@
     "require-dev": {
         "ext-json": "*",
         "roave/security-advisories": "dev-latest",
-        "phpunit/phpunit": "10.5.57",
+        "phpunit/phpunit": "10.5.58",
         "squizlabs/php_codesniffer": "4.0.0"
     },
     "autoload": {
diff --git a/composer.lock b/composer.lock
index 1760df6..28eca0b 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": "f87f4da3a7c250957c5fa32bb942e7d6",
+    "content-hash": "38790995a53a5a5217557b8cce9944ce",
     "packages": [
         {
             "name": "personnummer/personnummer",
@@ -692,16 +692,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "10.5.57",
+            "version": "10.5.58",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "8e7598bbb17bb5cd80728f4831d3f83223d3a6b3"
+                "reference": "e24fb46da450d8e6a5788670513c1af1424f16ca"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/8e7598bbb17bb5cd80728f4831d3f83223d3a6b3",
-                "reference": "8e7598bbb17bb5cd80728f4831d3f83223d3a6b3",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/e24fb46da450d8e6a5788670513c1af1424f16ca",
+                "reference": "e24fb46da450d8e6a5788670513c1af1424f16ca",
                 "shasum": ""
             },
             "require": {
@@ -773,7 +773,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
                 "security": "https://github.com/sebastianbergmann/phpunit/security/policy",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/10.5.57"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/10.5.58"
             },
             "funding": [
                 {
@@ -797,7 +797,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-09-24T06:30:38+00:00"
+            "time": "2025-09-28T12:04:46+00:00"
         },
         {
             "name": "roave/security-advisories",