diff --git a/CHANGELOG.md b/CHANGELOG.md
index e2840d62..88b5a5c8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,10 +5,16 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.11.5] - 2024-10-24
+
+- Bump `syn` to 2.
+
 ## [2.11.4] - 2024-10-22
+
 - Bump `derive_more` to version 1.0.0.
 
 ## [2.11.3] - 2024-05-08
+
 - Bump `proc-macro-crate` to version 3.
 
 ## [2.11.2] - 2024-04-05
diff --git a/Cargo.toml b/Cargo.toml
index 3ea724db..f977477e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,7 @@ categories.workspace = true
 [dependencies]
 bitvec = { version = "1", default-features = false, features = ["alloc"], optional = true }
 cfg-if = "1.0"
-scale-info-derive = { version = "2.11.4", path = "derive", default-features = false, optional = true }
+scale-info-derive = { version = "2.11.5", path = "derive", default-features = false, optional = true }
 serde = { version = "1", default-features = false, optional = true, features = ["derive", "alloc"] }
 derive_more = { version = "1.0.0", default-features = false, features = ["from"] }
 scale = { package = "parity-scale-codec", version = "3", default-features = false, features = ["derive"] }
@@ -60,7 +60,7 @@ members = [
 ]
 
 [workspace.package]
-version = "2.11.4"
+version = "2.11.5"
 authors = [
     "Parity Technologies <admin@parity.io>",
     "Centrality Developers <support@centrality.ai>",