diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 0ee8c01..2537c1f 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.3.0"
+  ".": "0.4.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1d6c6cd..3fb83cc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [0.4.0](https://github.com/workos/emulate/compare/v0.3.0...v0.4.0) (2026-07-27)
+
+
+### Features
+
+* convert toolchain to Bun and ship standalone binaries ([#27](https://github.com/workos/emulate/issues/27)) ([122a3aa](https://github.com/workos/emulate/commit/122a3aa4c4e02072c205ae29d237a3857d09c2a7))
+
+
+### Bug Fixes
+
+* bind emulator server to localhost by default ([#21](https://github.com/workos/emulate/issues/21)) ([5a0fd1b](https://github.com/workos/emulate/commit/5a0fd1bffdd698384059249e76800b5b3982ea27))
+
 ## [0.3.0](https://github.com/workos/emulate/compare/v0.2.2...v0.3.0) (2026-07-21)
 
 
diff --git a/package.json b/package.json
index 03cfe0a..f40e788 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@workos/emulate",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "type": "module",
   "description": "Local WorkOS API emulator for tests and development",
   "repository": {