diff --git a/composer.json b/composer.json
index 824a869..8d13a6b 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,7 @@
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         "roave/security-advisories": "dev-latest",
-        "phpunit/phpunit": "10.5.16",
+        "phpunit/phpunit": "10.5.17",
         "squizlabs/php_codesniffer": "3.9.1"
     },
     "autoload": {
diff --git a/composer.lock b/composer.lock
index 40ef695..683f096 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": "95aebd8bee05ef9fc1fa4941d90fda5a",
+    "content-hash": "babc72f2097e618d2ce6735087de28a5",
     "packages": [
         {
             "name": "personnummer/personnummer",
@@ -642,16 +642,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "10.5.16",
+            "version": "10.5.17",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "18f8d4a5f52b61fdd9370aaae3167daa0eeb69cd"
+                "reference": "c1f736a473d21957ead7e94fcc029f571895abf5"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/18f8d4a5f52b61fdd9370aaae3167daa0eeb69cd",
-                "reference": "18f8d4a5f52b61fdd9370aaae3167daa0eeb69cd",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/c1f736a473d21957ead7e94fcc029f571895abf5",
+                "reference": "c1f736a473d21957ead7e94fcc029f571895abf5",
                 "shasum": ""
             },
             "require": {
@@ -723,7 +723,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
                 "security": "https://github.com/sebastianbergmann/phpunit/security/policy",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/10.5.16"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/10.5.17"
             },
             "funding": [
                 {
@@ -739,7 +739,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2024-03-28T10:08:10+00:00"
+            "time": "2024-04-05T04:39:01+00:00"
         },
         {
             "name": "roave/security-advisories",