diff --git a/extensions/package-manager/src/Composer/ComposerAdapter.php b/extensions/package-manager/src/Composer/ComposerAdapter.php
index 9d88995ef..16deb8bb7 100644
--- a/extensions/package-manager/src/Composer/ComposerAdapter.php
+++ b/extensions/package-manager/src/Composer/ComposerAdapter.php
@@ -36,7 +36,7 @@ class ComposerAdapter
     {
         $this->application->resetComposer();
 
-        $this->output = $this->output ?? new BufferedOutput();
+        $this->output ??= new BufferedOutput();
 
         // This hack is necessary so that relative path repositories are resolved properly.
         $currDir = getcwd();
diff --git a/framework/core/src/Install/Steps/EnableBundledExtensions.php b/framework/core/src/Install/Steps/EnableBundledExtensions.php
index 2029347b7..1730b2964 100644
--- a/framework/core/src/Install/Steps/EnableBundledExtensions.php
+++ b/framework/core/src/Install/Steps/EnableBundledExtensions.php
@@ -123,7 +123,7 @@ class EnableBundledExtensions implements Step
 
     private function getMigrator(): Migrator
     {
-        return $this->migrator = $this->migrator ?? new Migrator(
+        return $this->migrator ??= new Migrator(
             new DatabaseMigrationRepository($this->database, 'migrations'),
             $this->database,
             new \Illuminate\Filesystem\Filesystem