diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 0c2e4f80a4..190c2adda3 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.40.4"
+  ".": "1.40.5"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index aaf31653a0..4ee946c4df 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 1.40.5 (2024-08-12)
+
+Full Changelog: [v1.40.4...v1.40.5](https://github.com/openai/openai-python/compare/v1.40.4...v1.40.5)
+
+### Documentation
+
+* **helpers:** make async client usage more clear ([34e1edf](https://github.com/openai/openai-python/commit/34e1edf29d6008df7196aaebc45172fa536c6410)), closes [#1639](https://github.com/openai/openai-python/issues/1639)
+
 ## 1.40.4 (2024-08-12)
 
 Full Changelog: [v1.40.3...v1.40.4](https://github.com/openai/openai-python/compare/v1.40.3...v1.40.4)
diff --git a/helpers.md b/helpers.md
index 2e0d314b50..965dd6e23c 100644
--- a/helpers.md
+++ b/helpers.md
@@ -139,6 +139,10 @@ It also supports all aforementioned [parsing helpers](#parsing-helpers).
 Unlike `.create(stream=True)`, the `.stream()` method requires usage within a context manager to prevent accidental leakage of the response:
 
 ```py
+from openai import AsyncOpenAI
+
+client = AsyncOpenAI()
+
 async with client.beta.chat.completions.stream(
     model='gpt-4o-2024-08-06',
     messages=[...],
diff --git a/pyproject.toml b/pyproject.toml
index e7436330a5..1e094d14a6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "openai"
-version = "1.40.4"
+version = "1.40.5"
 description = "The official Python library for the openai API"
 dynamic = ["readme"]
 license = "Apache-2.0"
diff --git a/src/openai/_version.py b/src/openai/_version.py
index bbf4d8303c..d416db5cac 100644
--- a/src/openai/_version.py
+++ b/src/openai/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "openai"
-__version__ = "1.40.4"  # x-release-please-version
+__version__ = "1.40.5"  # x-release-please-version