diff --git a/composer.json b/composer.json
index 7d92b7b..6a04dc2 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
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 		"php-parallel-lint/php-parallel-lint": "1.4.0",
 		"php-parallel-lint/php-console-highlighter": "1.0.0",
-		"phpunit/phpunit": "11.5.3"
+		"phpunit/phpunit": "11.5.6"
 	},
 	"scripts": {
 		"test": [
diff --git a/composer.lock b/composer.lock
index 8a67680..8331010 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
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         "This file is @generated automatically"
     ],
-    "content-hash": "0c9049a579f48660aa0806df3c51dec9",
+    "content-hash": "b0538598bb78739dd445250c9e08fea7",
     "packages": [],
     "packages-dev": [
         {
@@ -1238,16 +1238,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "11.5.3",
+            "version": "11.5.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "30e319e578a7b5da3543073e30002bf82042f701"
+                "reference": "3c3ae14c90f244cdda95028c3e469028e8d1c02c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/30e319e578a7b5da3543073e30002bf82042f701",
-                "reference": "30e319e578a7b5da3543073e30002bf82042f701",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/3c3ae14c90f244cdda95028c3e469028e8d1c02c",
+                "reference": "3c3ae14c90f244cdda95028c3e469028e8d1c02c",
                 "shasum": ""
             },
             "require": {
@@ -1319,7 +1319,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
                 "security": "https://github.com/sebastianbergmann/phpunit/security/policy",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/11.5.3"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/11.5.6"
             },
             "funding": [
                 {
@@ -1335,7 +1335,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-01-13T09:36:00+00:00"
+            "time": "2025-01-31T07:03:30+00:00"
         },
         {
             "name": "psr/container",