diff --git a/CHANGELOG.md b/CHANGELOG.md
index 93ddeb7..8b4d01e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 0.4.0 (07.02.2024)
+- [Bump `soroban-sdk` to `20.3.1`](https://github.com/kommitters/soroban-did-contract/issues/28)
+- [Use persistent storage type for DIDDocument](https://github.com/kommitters/soroban-did-contract/issues/28)
+
 ## 0.3.0 (21.12.2023)
 - [Bump `soroban-sdk` to `20.0.0`](https://github.com/kommitters/soroban-did-contract/issues/24)
 - [Extend Instance TTL on initialization to 31 days in ledgers](https://github.com/kommitters/soroban-did-contract/pull/25)
diff --git a/Cargo.toml b/Cargo.toml
index f4d7e32..873435a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "soroban-did-contract"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html