diff --git a/.github/workflows/harness.yml b/.github/workflows/harness.yml
index bcacc6b..c62125a 100644
--- a/.github/workflows/harness.yml
+++ b/.github/workflows/harness.yml
@@ -14,6 +14,6 @@ permissions: {}
 
 jobs:
   harness:
-    uses: Pollora/harness/.github/workflows/php-package.yml@v0.1.15
+    uses: Pollora/harness/.github/workflows/php-package.yml@v0.1.19
     permissions:
       contents: read
diff --git a/composer.json b/composer.json
index dae5a35..ccc47de 100644
--- a/composer.json
+++ b/composer.json
@@ -31,7 +31,7 @@
         "pestphp/pest": "^3.8",
         "php-stubs/wordpress-stubs": "^7.1",
         "phpstan/phpstan": "^2.1",
-        "pollora/harness": "^0.1.15",
+        "pollora/harness": "^0.1.19",
         "szepeviktor/phpstan-wordpress": "^2.0"
     },
     "autoload": {
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 1d0f0ba..72260e8 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -11,6 +11,9 @@
         <testsuite name="Feature">
             <directory>tests/Feature</directory>
         </testsuite>
+        <testsuite name="Architecture">
+            <file>tests/Arch.php</file>
+        </testsuite>
     </testsuites>
     <source>
         <include>
diff --git a/src/Activation.php b/src/Activation.php
index 913cad0..0ef53a2 100644
--- a/src/Activation.php
+++ b/src/Activation.php
@@ -7,6 +7,7 @@
 use Fruitcake\LaravelDebugbar\LaravelDebugbar;
 use Illuminate\Contracts\Foundation\Application;
 use Illuminate\Http\Request;
+use Illuminate\Support\Env;
 
 /**
  * Whether Pollora's tabs run for this request.
@@ -39,7 +40,7 @@ public static function shouldRun(Application $app): bool
         // there yet.
         $enabled = $config->has('debugbar.enabled')
             ? value($config->get('debugbar.enabled'))
-            : env('DEBUGBAR_ENABLED');
+            : Env::get('DEBUGBAR_ENABLED');
 
         return (bool) ($enabled ?? $config->get('app.debug'));
     }