diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index e4e1c3ce..1d52ad84 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.34.0"
+  ".": "0.34.1"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c62a16e4..d11f31ad 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,16 @@
 # Changelog
 
+## 0.34.1 (2024-08-19)
+
+Full Changelog: [v0.34.0...v0.34.1](https://github.com/anthropics/anthropic-sdk-python/compare/v0.34.0...v0.34.1)
+
+### Chores
+
+* **ci:** add CODEOWNERS file ([#639](https://github.com/anthropics/anthropic-sdk-python/issues/639)) ([33001cc](https://github.com/anthropics/anthropic-sdk-python/commit/33001ccf80f6ec2ac43b74f5f41034ec6a12552b))
+* **client:** fix parsing union responses when non-json is returned ([#643](https://github.com/anthropics/anthropic-sdk-python/issues/643)) ([45be91d](https://github.com/anthropics/anthropic-sdk-python/commit/45be91dbcc2789a71a048a34f1f23977b9829818))
+* **docs/api:** update prompt caching helpers ([6a55aee](https://github.com/anthropics/anthropic-sdk-python/commit/6a55aeeaca83ade0adc18eae0f8682558769d5ff))
+* **internal:** use different 32bit detection method ([#640](https://github.com/anthropics/anthropic-sdk-python/issues/640)) ([d6b2b63](https://github.com/anthropics/anthropic-sdk-python/commit/d6b2b630613f7c5f01fc3cd005a055989e7d8e71))
+
 ## 0.34.0 (2024-08-14)
 
 Full Changelog: [v0.33.1...v0.34.0](https://github.com/anthropics/anthropic-sdk-python/compare/v0.33.1...v0.34.0)
diff --git a/pyproject.toml b/pyproject.toml
index 5733c094..f1145cc8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "anthropic"
-version = "0.34.0"
+version = "0.34.1"
 description = "The official Python library for the anthropic API"
 dynamic = ["readme"]
 license = "MIT"
diff --git a/src/anthropic/_version.py b/src/anthropic/_version.py
index 1d20411a..fb7d1a5d 100644
--- a/src/anthropic/_version.py
+++ b/src/anthropic/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "anthropic"
-__version__ = "0.34.0"  # x-release-please-version
+__version__ = "0.34.1"  # x-release-please-version