diff --git a/composer.json b/composer.json
index 4706cda2..262cdaba 100644
--- a/composer.json
+++ b/composer.json
@@ -45,7 +45,7 @@
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     "mockery/mockery": "^1.6",
     "wp-phpunit/wp-phpunit": "^6.7",
-    "yoast/phpunit-polyfills": "^3.1",
+    "yoast/phpunit-polyfills": "^4.0",
     "php-stubs/wordpress-globals": "^0.2.0",
     "php-stubs/wordpress-tests-stubs": "^6.7"
   },
diff --git a/composer.lock b/composer.lock
index 7678e33b..f6eb5417 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
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     ],
-    "content-hash": "0313acfc48efaccad68091d4f7b99964",
+    "content-hash": "d18f0393069a3820d9b0f04447b0236c",
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             "name": "erusev/parsedown",
@@ -1255,16 +1255,16 @@
         },
         {
             "name": "myclabs/deep-copy",
-            "version": "1.12.1",
+            "version": "1.13.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/myclabs/DeepCopy.git",
-                "reference": "123267b2c49fbf30d78a7b2d333f6be754b94845"
+                "reference": "024473a478be9df5fdaca2c793f2232fe788e414"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/123267b2c49fbf30d78a7b2d333f6be754b94845",
-                "reference": "123267b2c49fbf30d78a7b2d333f6be754b94845",
+                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/024473a478be9df5fdaca2c793f2232fe788e414",
+                "reference": "024473a478be9df5fdaca2c793f2232fe788e414",
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@@ -1303,7 +1303,7 @@
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             "support": {
                 "issues": "https://github.com/myclabs/DeepCopy/issues",
-                "source": "https://github.com/myclabs/DeepCopy/tree/1.12.1"
+                "source": "https://github.com/myclabs/DeepCopy/tree/1.13.0"
             },
             "funding": [
                 {
@@ -1311,7 +1311,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2024-11-08T17:47:46+00:00"
+            "time": "2025-02-12T12:17:51+00:00"
         },
         {
             "name": "nikic/php-parser",
@@ -3824,21 +3824,21 @@
         },
         {
             "name": "yoast/phpunit-polyfills",
-            "version": "3.1.1",
+            "version": "4.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/Yoast/PHPUnit-Polyfills.git",
-                "reference": "e6381c62c4df51677b657fbac79b79dfce7acdab"
+                "reference": "134921bfca9b02d8f374c48381451da1d98402f9"
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             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/Yoast/PHPUnit-Polyfills/zipball/e6381c62c4df51677b657fbac79b79dfce7acdab",
-                "reference": "e6381c62c4df51677b657fbac79b79dfce7acdab",
+                "url": "https://api.github.com/repos/Yoast/PHPUnit-Polyfills/zipball/134921bfca9b02d8f374c48381451da1d98402f9",
+                "reference": "134921bfca9b02d8f374c48381451da1d98402f9",
                 "shasum": ""
             },
             "require": {
-                "php": ">=7.0",
-                "phpunit/phpunit": "^6.4.4 || ^7.0 || ^8.0 || ^9.0 || ^11.0"
+                "php": ">=7.1",
+                "phpunit/phpunit": "^7.5 || ^8.0 || ^9.0 || ^11.0 || ^12.0"
             },
             "require-dev": {
                 "php-parallel-lint/php-console-highlighter": "^1.0.0",
@@ -3848,7 +3848,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-main": "3.x-dev"
+                    "dev-main": "4.x-dev"
                 }
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             "autoload": {
@@ -3883,17 +3883,17 @@
                 "security": "https://github.com/Yoast/PHPUnit-Polyfills/security/policy",
                 "source": "https://github.com/Yoast/PHPUnit-Polyfills"
             },
-            "time": "2025-01-12T08:41:37+00:00"
+            "time": "2025-02-09T18:58:54+00:00"
         }
     ],
     "aliases": [],
     "minimum-stability": "stable",
-    "stability-flags": {},
+    "stability-flags": [],
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
         "php": ">=8.1"
     },
-    "platform-dev": {},
-    "plugin-api-version": "2.6.0"
+    "platform-dev": [],
+    "plugin-api-version": "2.3.0"
 }