diff --git a/index.ts b/index.ts
index e465f67..d1943a9 100644
--- a/index.ts
+++ b/index.ts
@@ -41,8 +41,8 @@ async function main() {
   );
 
   fse.writeFileSync(
-    path.join(dir, 'manifest.yml'),
-    await renderFile(path.join(templateDir, 'manifest.yml.template'), response)
+    path.join(dir, 'manifest.yaml'),
+    await renderFile(path.join(templateDir, 'manifest.yaml.template'), response)
   );
 }
 
diff --git a/template/manifest.yml.template b/template/manifest.yaml.template
similarity index 100%
rename from template/manifest.yml.template
rename to template/manifest.yaml.template