diff --git a/docs/pages/getting-started/advanced-options.mdx b/docs/pages/getting-started/advanced-options.mdx
index 0ba5b681..9a4fb673 100644
--- a/docs/pages/getting-started/advanced-options.mdx
+++ b/docs/pages/getting-started/advanced-options.mdx
@@ -25,7 +25,7 @@ export const YourApp = () => {
 
 `bigint{:typescript}`
 
-Expiration of the delegation in nanoseconds, optional, 28_800_000_000_000 (8 hours) by default.
+Expiration of the delegation in nanoseconds, optional, 1_800_000_000_000 (30 minutes) by default.
 
 ### storage