diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index 3ce5f8d004..d58c8454c5 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -1 +1,4 @@
+# This file is used to automatically assign reviewers to PRs
+# For more information see: https://help.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners
+
 * @openai/sdks-team
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 2b233c7b0d..64a418cb06 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.40.2"
+  ".": "1.40.3"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a6c65f0eb2..825e753924 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Changelog
 
+## 1.40.3 (2024-08-10)
+
+Full Changelog: [v1.40.2...v1.40.3](https://github.com/openai/openai-python/compare/v1.40.2...v1.40.3)
+
+### Chores
+
+* **ci:** bump prism mock server version ([#1630](https://github.com/openai/openai-python/issues/1630)) ([214d8fd](https://github.com/openai/openai-python/commit/214d8fd8d7d43c06c7dfe02680847a6a60988120))
+* **ci:** codeowners file ([#1627](https://github.com/openai/openai-python/issues/1627)) ([c059a20](https://github.com/openai/openai-python/commit/c059a20c8cd2124178641c9d8688e276b1cf1d59))
+* **internal:** ensure package is importable in lint cmd ([#1631](https://github.com/openai/openai-python/issues/1631)) ([779e6d0](https://github.com/openai/openai-python/commit/779e6d081eb55c158f2aa1962190079eb7f1335e))
+
 ## 1.40.2 (2024-08-08)
 
 Full Changelog: [v1.40.1...v1.40.2](https://github.com/openai/openai-python/compare/v1.40.1...v1.40.2)
diff --git a/pyproject.toml b/pyproject.toml
index 9600130ca3..09a11668a3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "openai"
-version = "1.40.2"
+version = "1.40.3"
 description = "The official Python library for the openai API"
 dynamic = ["readme"]
 license = "Apache-2.0"
@@ -83,10 +83,13 @@ format = { chain = [
 "lint" = { chain = [
   "check:ruff",
   "typecheck",
+  "check:importable",
 ]}
 "check:ruff" = "ruff check ."
 "fix:ruff" = "ruff check --fix ."
 
+"check:importable" = "python -c 'import openai'"
+
 typecheck = { chain = [
   "typecheck:pyright",
   "typecheck:mypy"
diff --git a/scripts/mock b/scripts/mock
index f586157699..d2814ae6a0 100755
--- a/scripts/mock
+++ b/scripts/mock
@@ -21,7 +21,7 @@ echo "==> Starting mock server with URL ${URL}"
 
 # Run prism mock on the given spec
 if [ "$1" == "--daemon" ]; then
-  npm exec --package=@stainless-api/prism-cli@5.8.4 -- prism mock "$URL" &> .prism.log &
+  npm exec --package=@stainless-api/prism-cli@5.8.5 -- prism mock "$URL" &> .prism.log &
 
   # Wait for server to come online
   echo -n "Waiting for server"
@@ -37,5 +37,5 @@ if [ "$1" == "--daemon" ]; then
 
   echo
 else
-  npm exec --package=@stainless-api/prism-cli@5.8.4 -- prism mock "$URL"
+  npm exec --package=@stainless-api/prism-cli@5.8.5 -- prism mock "$URL"
 fi
diff --git a/src/openai/_version.py b/src/openai/_version.py
index 7e6783b6c6..5eed512d7c 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__ = "1.40.2"  # x-release-please-version
+__version__ = "1.40.3"  # x-release-please-version