diff --git a/CHANGELOG.md b/CHANGELOG.md
index 36e6ae9..ce84637 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [0.3.1](https://github.com/codize-dev/cli/compare/v0.3.0...v0.3.1) (2026-02-28)
+
+
+### Bug Fixes
+
+* Display field-level validation error details from CodizeApiError ([8636496](https://github.com/codize-dev/cli/commit/86364962f6060668462be617f5cd9ecc03f84324))
+* Do not inherit sandbox exit code in JSON output mode ([da24b07](https://github.com/codize-dev/cli/commit/da24b076cb0c9e43e9d69e0092ce5675a94c5aec))
+
 ## [0.3.0](https://github.com/codize-dev/cli/compare/v0.2.1...v0.3.0) (2026-02-28)
 
 
diff --git a/package.json b/package.json
index fd384da..dd33802 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "@codize/cli",
   "module": "src/index.ts",
   "type": "module",
-  "version": "0.3.0",
+  "version": "0.3.1",
   "author": "koki-develop <kou.pg.0131@gmail.com>",
   "homepage": "https://github.com/codize-dev/cli",
   "repository": {