diff --git a/svelte.config.js b/svelte.config.js
index 9409ebb..1d51690 100644
--- a/svelte.config.js
+++ b/svelte.config.js
@@ -6,7 +6,7 @@ const config = {
 		runes: ({ filename }) => (filename.split(/[/\\]/).includes('node_modules') ? undefined : true)
 	},
 	kit: {
-		adapter: adapter({ out: 'build' }),
+		adapter: adapter({ out: 'build', bodySize: 500 * 1024 * 1024 }), // 500 MB for audio uploads
 		// CSRF origin check disabled: this app uses no cookie-based session auth,
 		// and the Web Share Target POST legitimately arrives from external origins.
 		csrf: { checkOrigin: false }