diff --git a/CHANGELOG.md b/CHANGELOG.md
index ebaf85b9..be8607ff 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [0.13.3](https://github.com/agentclientprotocol/agent-client-protocol/compare/v0.13.2...v0.13.3) - 2026-05-19
+
+### Other
+
+- *(deps)* bump num-conv from 0.2.1 to 0.2.2 in the minor group ([#1244](https://github.com/agentclientprotocol/agent-client-protocol/pull/1244))
+- Set minimum supported Rust version ([#1232](https://github.com/agentclientprotocol/agent-client-protocol/pull/1232))
+- Document ACP versioning semantics ([#1229](https://github.com/agentclientprotocol/agent-client-protocol/pull/1229))
+
 ## [0.13.2](https://github.com/agentclientprotocol/agent-client-protocol/compare/v0.13.1...v0.13.2) - 2026-05-17
 
 ### Fixed
diff --git a/Cargo.lock b/Cargo.lock
index 7624a746..5b632959 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,7 +4,7 @@ version = 4
 
 [[package]]
 name = "agent-client-protocol-schema"
-version = "0.13.2"
+version = "0.13.3"
 dependencies = [
  "anyhow",
  "derive_more",
diff --git a/Cargo.toml b/Cargo.toml
index 9098f027..13846ded 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "agent-client-protocol-schema"
 authors = ["Zed <hi@zed.dev>"]
-version = "0.13.2"
+version = "0.13.3"
 edition = "2024"
 license = "Apache-2.0"
 description = "A protocol for standardizing communication between code editors and AI coding agents"