diff --git a/.github/workflows/publish-pypi.yml b/.github/workflows/publish-pypi.yml
index 5e2e9a9c..4a49e38b 100644
--- a/.github/workflows/publish-pypi.yml
+++ b/.github/workflows/publish-pypi.yml
@@ -8,6 +8,7 @@ jobs:
   publish:
     name: publish
     runs-on: ubuntu-latest
+    environment: production-release
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 51acdaa4..69508b72 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.37.0"
+  ".": "0.37.1"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1b468816..bc2156cb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## 0.37.1 (2024-10-22)
+
+Full Changelog: [v0.37.0...v0.37.1](https://github.com/anthropics/anthropic-sdk-python/compare/v0.37.0...v0.37.1)
+
+### Bug Fixes
+
+* **bedrock:** correct handling of messages beta ([#711](https://github.com/anthropics/anthropic-sdk-python/issues/711)) ([4cba32b](https://github.com/anthropics/anthropic-sdk-python/commit/4cba32b41e82377e155612e05c847baf2ca166d0))
+* **vertex:** use correct beta url ([b76db5c](https://github.com/anthropics/anthropic-sdk-python/commit/b76db5c90a9b22d4078a15ac6844a4f75dcbc857))
+
 ## 0.37.0 (2024-10-22)
 
 Full Changelog: [v0.36.2...v0.37.0](https://github.com/anthropics/anthropic-sdk-python/compare/v0.36.2...v0.37.0)
diff --git a/pyproject.toml b/pyproject.toml
index 364f8f26..1ccb9a45 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "anthropic"
-version = "0.37.0"
+version = "0.37.1"
 description = "The official Python library for the anthropic API"
 dynamic = ["readme"]
 license = "MIT"
diff --git a/src/anthropic/_version.py b/src/anthropic/_version.py
index 84edab50..18947716 100644
--- a/src/anthropic/_version.py
+++ b/src/anthropic/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "anthropic"
-__version__ = "0.37.0"  # x-release-please-version
+__version__ = "0.37.1"  # x-release-please-version
diff --git a/src/anthropic/lib/bedrock/_client.py b/src/anthropic/lib/bedrock/_client.py
index d585a1bb..70d1561a 100644
--- a/src/anthropic/lib/bedrock/_client.py
+++ b/src/anthropic/lib/bedrock/_client.py
@@ -42,7 +42,7 @@ def _prepare_options(input_options: FinalRequestOptions) -> FinalRequestOptions:
             if betas:
                 options.json_data.setdefault("anthropic_beta", betas.split(","))
 
-    if options.url in {"/v1/complete", "/v1/messages"} and options.method == "post":
+    if options.url in {"/v1/complete", "/v1/messages", "/v1/messages?beta=true"} and options.method == "post":
         if not is_dict(options.json_data):
             raise RuntimeError("Expected dictionary json_data for post /completions endpoint")
 
diff --git a/src/anthropic/lib/vertex/_client.py b/src/anthropic/lib/vertex/_client.py
index f6289aee..3df48d0c 100644
--- a/src/anthropic/lib/vertex/_client.py
+++ b/src/anthropic/lib/vertex/_client.py
@@ -426,7 +426,7 @@ def _prepare_options(input_options: FinalRequestOptions, *, project_id: str | No
     if is_dict(options.json_data):
         options.json_data.setdefault("anthropic_version", DEFAULT_VERSION)
 
-    if options.url == "/v1/messages" and options.method == "post":
+    if options.url in {"/v1/messages", "/v1/messages?beta=true"} and options.method == "post":
         if project_id is None:
             raise RuntimeError(
                 "No project_id was given and it could not be resolved from credentials. The client should be instantiated with the `project_id` argument or the `ANTHROPIC_VERTEX_PROJECT_ID` environment variable should be set."