diff --git a/crates/matrix-sdk-indexeddb/CHANGELOG.md b/crates/matrix-sdk-indexeddb/CHANGELOG.md
index 276016b1c..e36116c60 100644
--- a/crates/matrix-sdk-indexeddb/CHANGELOG.md
+++ b/crates/matrix-sdk-indexeddb/CHANGELOG.md
@@ -1,5 +1,7 @@
 # UNRELEASED
 
+- Improve the efficiency of objects stored in the crypto store. ([#3645](https://github.com/matrix-org/matrix-rust-sdk/pull/3645))
+
 - Add new method `IndexeddbCryptoStore::open_with_key`. ([#3423](https://github.com/matrix-org/matrix-rust-sdk/pull/3423))
 
 - `save_change` performance improvement, all encryption and serialization