diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 33b568d4..5a02ec9b 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,5 +1,5 @@
 {
-  ".": "0.19.0",
+  ".": "0.19.1",
   "packages/vertex-sdk": "0.3.0",
   "packages/bedrock-sdk": "0.9.1"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c3813434..d3ed4615 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## 0.19.1 (2024-03-21)
+
+Full Changelog: [sdk-v0.19.0...sdk-v0.19.1](https://github.com/anthropics/anthropic-sdk-typescript/compare/sdk-v0.19.0...sdk-v0.19.1)
+
+### Documentation
+
+* **readme:** consistent use of sentence case in headings ([#347](https://github.com/anthropics/anthropic-sdk-typescript/issues/347)) ([30f45d1](https://github.com/anthropics/anthropic-sdk-typescript/commit/30f45d14a534d7392dfcc4fb503bf07ab8cf038d))
+* **readme:** document how to make undocumented requests ([#349](https://github.com/anthropics/anthropic-sdk-typescript/issues/349)) ([f92c50a](https://github.com/anthropics/anthropic-sdk-typescript/commit/f92c50ac6d9d1b8bdb837e52414aafd3224553da))
+
 ## 0.19.0 (2024-03-19)
 
 Full Changelog: [sdk-v0.18.0...sdk-v0.19.0](https://github.com/anthropics/anthropic-sdk-typescript/compare/sdk-v0.18.0...sdk-v0.19.0)
diff --git a/package.json b/package.json
index 88def666..270b9a07 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@anthropic-ai/sdk",
-  "version": "0.19.0",
+  "version": "0.19.1",
   "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 d596c5dd..8f7cb042 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 "0.19.0"
+  version "0.19.1"
   # 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 7bfbf638..eb3e8721 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 "0.19.0"
+  version "0.19.1"
   # x-release-please-end-version
   dependencies:
     "@types/node" "^18.11.18"
diff --git a/src/version.ts b/src/version.ts
index 02c8084e..f3ae0bb2 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export const VERSION = '0.19.0'; // x-release-please-version
+export const VERSION = '0.19.1'; // x-release-please-version