diff --git a/README.md b/README.md
index fc98b2b7..85670df3 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,8 @@ source env/bin/activate
 pip install openai-agents
 ```
 
+For voice support, install with the optional `voice` group: `pip install openai-agents[voice]`.
+
 ## Hello world example
 
 ```python
diff --git a/pyproject.toml b/pyproject.toml
index 7567013b..667ab355 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "openai-agents"
-version = "0.0.5"
+version = "0.0.6"
 description = "OpenAI Agents SDK"
 readme = "README.md"
 requires-python = ">=3.9"