diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f6fb01f..227cf3b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
       fail-fast: false
       matrix:
         # Mirror the `php` floor in composer.json (>=8.2) through current stable.
-        php-version: ["8.2", "8.3", "8.4"]
+        php-version: ["8.2", "8.3", "8.4", "8.5"]
     steps:
       # The official images ship without git/unzip, which checkout and Composer use.
       - name: Install system packages
diff --git a/phpunit.xml b/phpunit.xml
index 5a126ec..1c854f6 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -3,7 +3,10 @@
          xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/11.0/phpunit.xsd"
          bootstrap="vendor/autoload.php"
          colors="true"
-         cacheDirectory=".phpunit.cache">
+         cacheDirectory=".phpunit.cache"
+         failOnDeprecation="true"
+         failOnWarning="true"
+         failOnNotice="true">
     <testsuites>
         <testsuite name="Composer SDK Test Suite">
             <directory>tests</directory>
diff --git a/src/Utilities.php b/src/Utilities.php
index a49e133..a77afc2 100644
--- a/src/Utilities.php
+++ b/src/Utilities.php
@@ -109,9 +109,7 @@ public static function makeRequest(
             $response = curl_exec($ch);
             $statusCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
             $error = curl_error($ch);
-            
-            curl_close($ch);
-            
+
             if ($error) {
                 Logger::error('There was an error making a request.', $error)->log();
                 return [