diff --git a/6-data-storage/03-indexeddb/article.md b/6-data-storage/03-indexeddb/article.md
index 53635c20..7fd7168b 100644
--- a/6-data-storage/03-indexeddb/article.md
+++ b/6-data-storage/03-indexeddb/article.md
@@ -809,7 +809,7 @@ let result = await promise; // if still needed
 
 IndexedDB can be thought of as a "localStorage on steroids". It's a simple key-value database, powerful enough for offline apps, yet simple to use.
 
-The best manual is the specification, [the current one](https://w3c.github.io/IndexedDB) is 2.0, but few methods from [3.0](https://w3c.github.io/IndexedDB/) (it's not much different) are partially supported.
+The best manual is the specification, [the current one](https://www.w3.org/TR/IndexedDB-2/) is 2.0, but few methods from [3.0](https://w3c.github.io/IndexedDB/) (it's not much different) are partially supported.
 
 The basic usage can be described with a few phrases: