diff --git a/composer.json b/composer.json
index 707f8b36..48858d4f 100644
--- a/composer.json
+++ b/composer.json
@@ -45,7 +45,7 @@
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         "wp-cli/i18n-command": "^2.6.1",
-        "wp-phpunit/wp-phpunit": "^6.5.4"
+        "wp-phpunit/wp-phpunit": "^6.6.0"
     },
     "scripts": {
         "fix": "vendor/bin/phpcbf --standard=phpcs.xml .",
diff --git a/composer.lock b/composer.lock
index 27f8c896..8437b063 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": "8010d26d9253db6b4df2703ffe6211ae",
+    "content-hash": "eec5f646afbd7e77b947eeb97d0d90b6",
     "packages": [
         {
             "name": "doctrine/inflector",
@@ -3412,16 +3412,16 @@
         },
         {
             "name": "wp-phpunit/wp-phpunit",
-            "version": "6.5.5",
+            "version": "6.6.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/wp-phpunit/wp-phpunit.git",
-                "reference": "ef2cb44c0d991ac0c3a7a3ed0d2d1cf3fe8d8f2f"
+                "reference": "7a1d3a2150033a3d3e19de40aa5b2ef2fee36bc3"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/wp-phpunit/wp-phpunit/zipball/ef2cb44c0d991ac0c3a7a3ed0d2d1cf3fe8d8f2f",
-                "reference": "ef2cb44c0d991ac0c3a7a3ed0d2d1cf3fe8d8f2f",
+                "url": "https://api.github.com/repos/wp-phpunit/wp-phpunit/zipball/7a1d3a2150033a3d3e19de40aa5b2ef2fee36bc3",
+                "reference": "7a1d3a2150033a3d3e19de40aa5b2ef2fee36bc3",
                 "shasum": ""
             },
             "type": "library",
@@ -3456,7 +3456,7 @@
                 "issues": "https://github.com/wp-phpunit/issues",
                 "source": "https://github.com/wp-phpunit/wp-phpunit"
             },
-            "time": "2024-05-07T16:46:52+00:00"
+            "time": "2024-07-17T01:13:44+00:00"
         }
     ],
     "aliases": [