diff --git a/README.md b/README.md
index d8a840b4..a9db9e9b 100644
--- a/README.md
+++ b/README.md
@@ -132,6 +132,10 @@ Streaming with `client.messages.stream(...)` exposes [various helpers for your c
 
 Alternatively, you can use `client.messages.create({ ..., stream: true })` which only returns an async iterable of the events in the stream and thus uses less memory (it does not build up a final message object for you).
 
+## Tool use beta
+
+This SDK provides beta support for tool use, aka function calling. More details can be found in [the documentation](https://docs.anthropic.com/claude/docs/tool-use).
+
 ## AWS Bedrock
 
 We provide support for the [Anthropic Bedrock API](https://aws.amazon.com/bedrock/claude/) through a [separate package](https://github.com/anthropics/anthropic-sdk-typescript/tree/main/packages/bedrock-sdk).
diff --git a/packages/bedrock-sdk/yarn.lock b/packages/bedrock-sdk/yarn.lock
index c20d4931..bc85a7ad 100644
--- a/packages/bedrock-sdk/yarn.lock
+++ b/packages/bedrock-sdk/yarn.lock
@@ -16,7 +16,7 @@
     "@jridgewell/trace-mapping" "^0.3.9"
 
 "@anthropic-ai/sdk@file:../../dist":
-  version "0.19.2"
+  version "0.20.0"
   dependencies:
     "@types/node" "^18.11.18"
     "@types/node-fetch" "^2.6.4"
diff --git a/packages/vertex-sdk/yarn.lock b/packages/vertex-sdk/yarn.lock
index 1e42921b..416b3398 100644
--- a/packages/vertex-sdk/yarn.lock
+++ b/packages/vertex-sdk/yarn.lock
@@ -16,7 +16,7 @@
     "@jridgewell/trace-mapping" "^0.3.9"
 
 "@anthropic-ai/sdk@file:../../dist":
-  version "0.19.2"
+  version "0.20.0"
   dependencies:
     "@types/node" "^18.11.18"
     "@types/node-fetch" "^2.6.4"