diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 0d0d7880..f7e8d650 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,5 +1,5 @@
 {
-  ".": "0.27.2",
+  ".": "0.27.3",
   "packages/vertex-sdk": "0.4.1",
   "packages/bedrock-sdk": "0.10.2"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b6bc1be8..ed3f9175 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,19 @@
 # Changelog
 
+## 0.27.3 (2024-09-09)
+
+Full Changelog: [sdk-v0.27.2...sdk-v0.27.3](https://github.com/anthropics/anthropic-sdk-typescript/compare/sdk-v0.27.2...sdk-v0.27.3)
+
+### Bug Fixes
+
+* **streaming:** correct error message serialisation ([#524](https://github.com/anthropics/anthropic-sdk-typescript/issues/524)) ([e150fa4](https://github.com/anthropics/anthropic-sdk-typescript/commit/e150fa47d0cd4cbbe1269e3971085d4a434fc3ba))
+* **uploads:** avoid making redundant memory copies ([#520](https://github.com/anthropics/anthropic-sdk-typescript/issues/520)) ([b6d2638](https://github.com/anthropics/anthropic-sdk-typescript/commit/b6d2638387612def84cebac2dedd5fbbea776d09))
+
+
+### Chores
+
+* **docs:** update browser support information ([#522](https://github.com/anthropics/anthropic-sdk-typescript/issues/522)) ([ce7aeb5](https://github.com/anthropics/anthropic-sdk-typescript/commit/ce7aeb59ccba4e4d19cb9aa88d7055fb585865ae))
+
 ## 0.27.2 (2024-09-04)
 
 Full Changelog: [sdk-v0.27.1...sdk-v0.27.2](https://github.com/anthropics/anthropic-sdk-typescript/compare/sdk-v0.27.1...sdk-v0.27.2)
diff --git a/package.json b/package.json
index b538de1e..940a865e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@anthropic-ai/sdk",
-  "version": "0.27.2",
+  "version": "0.27.3",
   "description": "The official TypeScript library for the Anthropic API",
   "author": "Anthropic <support@anthropic.com>",
   "types": "dist/index.d.ts",
diff --git a/packages/bedrock-sdk/yarn.lock b/packages/bedrock-sdk/yarn.lock
index 87dfbf59..b642a4ff 100644
--- a/packages/bedrock-sdk/yarn.lock
+++ b/packages/bedrock-sdk/yarn.lock
@@ -17,7 +17,7 @@
 
 "@anthropic-ai/sdk@file:../../dist":
   # x-release-please-start-version
-  version "0.27.2"
+  version "0.27.3"
   # x-release-please-end-version
   dependencies:
     "@types/node" "^18.11.18"
diff --git a/packages/vertex-sdk/yarn.lock b/packages/vertex-sdk/yarn.lock
index 6db350fc..8aac176d 100644
--- a/packages/vertex-sdk/yarn.lock
+++ b/packages/vertex-sdk/yarn.lock
@@ -17,7 +17,7 @@
 
 "@anthropic-ai/sdk@file:../../dist":
   # x-release-please-start-version
-  version "0.27.2"
+  version "0.27.3"
   # x-release-please-end-version
   dependencies:
     "@types/node" "^18.11.18"
diff --git a/src/version.ts b/src/version.ts
index ddd4422b..e741f3a2 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export const VERSION = '0.27.2'; // x-release-please-version
+export const VERSION = '0.27.3'; // x-release-please-version