diff --git a/composer.json b/composer.json
index 40867c16..21697ec9 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
 		"phpcompatibility/phpcompatibility-wp": "*",
 		"squizlabs/php_codesniffer": "*",
 		"wp-coding-standards/wpcs": "*",
-		"wp-phpunit/wp-phpunit": "5.7.2",
+		"wp-phpunit/wp-phpunit": "6.0.1",
 		"phpunit/phpunit": "7.5.20"
   },
 	"autoload": {
diff --git a/composer.lock b/composer.lock
index 7319f306..8961c940 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": "260a239ae83e1e1342b356ef41e67709",
+    "content-hash": "98541a8baaceacd2afbc8ff5818861bf",
     "packages": [],
     "packages-dev": [
         {
@@ -2050,16 +2050,16 @@
         },
         {
             "name": "wp-phpunit/wp-phpunit",
-            "version": "5.7.2",
+            "version": "6.0.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/wp-phpunit/wp-phpunit.git",
-                "reference": "5ab77c1e1328e9bee65f60c246e33b13fc202375"
+                "reference": "d4082280dd59add7c42d0a67400f8eb26cd790de"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/wp-phpunit/wp-phpunit/zipball/5ab77c1e1328e9bee65f60c246e33b13fc202375",
-                "reference": "5ab77c1e1328e9bee65f60c246e33b13fc202375",
+                "url": "https://api.github.com/repos/wp-phpunit/wp-phpunit/zipball/d4082280dd59add7c42d0a67400f8eb26cd790de",
+                "reference": "d4082280dd59add7c42d0a67400f8eb26cd790de",
                 "shasum": ""
             },
             "type": "library",
@@ -2094,7 +2094,7 @@
                 "issues": "https://github.com/wp-phpunit/issues",
                 "source": "https://github.com/wp-phpunit/wp-phpunit"
             },
-            "time": "2021-03-10T17:57:07+00:00"
+            "time": "2022-07-12T22:10:08+00:00"
         }
     ],
     "aliases": [],
@@ -2106,5 +2106,5 @@
         "php": ">=5.5"
     },
     "platform-dev": [],
-    "plugin-api-version": "2.1.0"
+    "plugin-api-version": "2.3.0"
 }