diff --git a/README.md b/README.md
index 637f235..7b73800 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ Open `deploy.php` and check the configuration, replace the example values
 
 Try to deploy to staging by running:
 
-    symfony php vendor/bin/deployer.phar deploy staging
+    symfony php vendor/bin/dep deploy stage=staging
     
 Log in through `ssh` on the dev-server and alter the `.env.local`-file to use the
 correct credentials.
diff --git a/src/Skeleton/PostCreateProject.php b/src/Skeleton/PostCreateProject.php
index 5746128..42dc3f7 100644
--- a/src/Skeleton/PostCreateProject.php
+++ b/src/Skeleton/PostCreateProject.php
@@ -67,11 +67,13 @@ private static function reconfigureApplication(Event $event): void
         file_put_contents($projectDir . '/config/packages/symfonycasts_sass.yaml', $content);
 
         $io->notice('→ Set up asset mapper with framework-core-bundle');
-        file_put_contents(
-            $projectDir . '/config/packages/asset_mapper.yaml',
-            '            - vendor/sumocoders/framework-core-bundle/assets-public/',
-            FILE_APPEND
+        $content = file_get_contents($projectDir . '/config/packages/asset_mapper.yaml');
+        $content = preg_replace(
+            '/(paths:(\r\n|\r|\n) +- assets\/(\r\n|\r|\n))/',
+            '$1            - vendor/sumocoders/framework-core-bundle/assets-public/' . PHP_EOL,
+            $content
         );
+        file_put_contents($projectDir . '/config/packages/asset_mapper.yaml', $content);
 
         $io->notice('→ Reconfigure Twig');
         $content = file_get_contents($projectDir . '/config/packages/twig.yaml');