diff --git a/.github/workflows/integrate.yaml b/.github/workflows/integrate.yaml
index f2233ee0..eaae0c6a 100644
--- a/.github/workflows/integrate.yaml
+++ b/.github/workflows/integrate.yaml
@@ -106,6 +106,7 @@ jobs:
           - "8.0"
           - "8.1"
           - "8.2"
+          - "8.3"
         dependencies:
           - "lowest"
           - "highest"
diff --git a/bin/phpunit-wrapper.php b/bin/phpunit-wrapper.php
index 5ef61238..effccf05 100644
--- a/bin/phpunit-wrapper.php
+++ b/bin/phpunit-wrapper.php
@@ -38,7 +38,7 @@
             exit;
         }
 
-        $arguments = unserialize($command);
+        $arguments = unserialize(trim($command));
         (new PHPUnit\TextUI\Command())->run($arguments, false);
 
         fwrite($writeTo, WrapperWorker::TEST_EXECUTED_MARKER);