diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 1b5dc400..0a40b9d7 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.39.0"
+  ".": "0.40.0"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5b2540f7..b60fd98e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,18 @@
 # Changelog
 
+## [0.40.0](https://github.com/hyperspell/python-sdk/compare/v0.39.0...v0.40.0) (2026-09-03)
+
+
+### Features
+
+* **api:** sync generated SDK from staging ca1f56f6d237bb6dca45205a5ebe0a82f96ac4fb ([#116](https://github.com/hyperspell/python-sdk/issues/116)) ([252fede](https://github.com/hyperspell/python-sdk/commit/252fede224b49862d05cd26285e601b5aea87360))
+* **api:** sync generated SDK from staging cafa7d065818039fba629a81ec2e43c3a97c79e8 ([#118](https://github.com/hyperspell/python-sdk/issues/118)) ([bbed944](https://github.com/hyperspell/python-sdk/commit/bbed944e1ccf5aa40c069dc09b80e42a04f55223))
+
+
+### Bug Fixes
+
+* validate the production release token ([#119](https://github.com/hyperspell/python-sdk/issues/119)) ([dc09e88](https://github.com/hyperspell/python-sdk/commit/dc09e88f7a9927a3a60c42ec313080fbcfdb1fe3))
+
 ## [0.39.0](https://github.com/hyperspell/python-sdk/compare/v0.38.0...v0.39.0) (2026-06-26)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 4e562c96..65b95c0c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "hyperspell"
-version = "0.39.0"
+version = "0.40.0"
 description = "The official Python library for the hyperspell API"
 dynamic = ["readme"]
 license = "MIT"
diff --git a/src/hyperspell/_version.py b/src/hyperspell/_version.py
index 0cdc859c..8d411811 100644
--- a/src/hyperspell/_version.py
+++ b/src/hyperspell/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "hyperspell"
-__version__ = "0.39.0"  # x-release-please-version
+__version__ = "0.40.0"  # x-release-please-version