diff --git a/CHANGELOG.md b/CHANGELOG.md
index 583b9b6..fa074a1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.9.0](https://github.com/codize-dev/sandbox/compare/v0.8.0...v0.9.0) (2026-04-22)
+
+
+### Features
+
+* add optional stdin field to POST /v1/run ([8ef0a60](https://github.com/codize-dev/sandbox/commit/8ef0a6045446f8f6834c35319332abf0706a295c))
+
 ## [0.8.0](https://github.com/codize-dev/sandbox/compare/v0.7.4...v0.8.0) (2026-04-19)