diff --git a/CHANGELOG.md b/CHANGELOG.md
index d74048d..0dc16fb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 # main
 
+# 0.4.0
+
 - Add bindings to Bun's shell `$`. https://github.com/zth/rescript-bun/pull/4
 
 # 0.3.1
diff --git a/package-lock.json b/package-lock.json
index 03abac9..64142e7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "rescript-bun",
-  "version": "0.3.1",
+  "version": "0.4.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "rescript-bun",
-      "version": "0.3.1",
+      "version": "0.4.0",
       "license": "MIT",
       "devDependencies": {
         "@rescript/core": "1.0.0",
diff --git a/package.json b/package.json
index 29641b2..dc8690e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "rescript-bun",
-  "version": "0.3.1",
+  "version": "0.4.0",
   "main": "src/Bun.js",
   "sideEffects": false,
   "description": "Use Bun with ReScript.",