diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index b3e3395..4c313f9 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.3.3"
+  ".": "1.4.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e2cba79..69af23b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,23 @@
 # Changelog
 
+## [1.4.0](https://github.com/deployhq/deploy-agent/compare/v1.3.3...v1.4.0) (2025-11-14)
+
+
+### Features
+
+* Add RSpec test suite and multi-version Ruby CI support ([fd1d1ab](https://github.com/deployhq/deploy-agent/commit/fd1d1abbae368fdb209ba10f0e9e2014b550ccb8))
+* Add RSpec test suite and multi-version Ruby CI support ([bd59b61](https://github.com/deployhq/deploy-agent/commit/bd59b61a5dd1372a8abd71f6029a37412a21e60b))
+
+
+### Bug Fixes
+
+* Exclude vendor directory from RuboCop inspection ([b12a7cb](https://github.com/deployhq/deploy-agent/commit/b12a7cbb270e631e8efb266f05372fe430bb25d3))
+
+
+### Documentation
+
+* Add language identifier to code block in CLAUDE.md ([369fe90](https://github.com/deployhq/deploy-agent/commit/369fe90eeabf5438c1a591e2d24568740f4fbcf4))
+
 ## [1.3.3](https://github.com/deployhq/deploy-agent/compare/v1.3.2...v1.3.3) (2025-01-08)