diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 3aaeca3..305f4d8 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -18,6 +18,28 @@ jobs:
       - name: Lint code
         run: nox -s lint
 
+  package:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+
+    steps:
+      - name: "Checkout repository"
+        uses: actions/checkout@v4
+
+      - name: "Setup Python"
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.x"
+          cache: "pip"
+
+      - name: "Check packages"
+        run: |
+          python -m pip install -U pip setuptools wheel build twine rstcheck
+          python -m build
+          # Our Python example shows a REPL and is not valid Python
+          rstcheck --ignore-languages python README.rst
+          python -m twine check dist/*
+
   docs:
     runs-on: ubuntu-latest
     steps:
diff --git a/README.rst b/README.rst
index 51c0bfb..7bffe47 100644
--- a/README.rst
+++ b/README.rst
@@ -1,10 +1,5 @@
-.. raw:: html
-
-   <img align="right" width="auto" height="auto" src="https://www.elastic.co/static-res/images/elastic-logo-200.png">
-
-
 Elasticsearch Serverless Python Client
-===========================
+======================================
 
 .. image:: https://img.shields.io/pypi/v/elasticsearch-serverless
    :target: https://pypi.org/project/elasticsearch-serverless
@@ -76,10 +71,10 @@ Quick Start
 
     # Import the client from the 'elasticsearch' module
     >>> from elasticsearch_serverless import Elasticsearch
-    
+
     # Instantiate a client instance
     >>> client = Elasticsearch("http://localhost:9200")
-    
+
     # Call an API, in this example `info()`
     >>> resp = client.info()
 
diff --git a/elasticsearch_serverless/_sync/client/utils.py b/elasticsearch_serverless/_sync/client/utils.py
index f950045..ad890a4 100644
--- a/elasticsearch_serverless/_sync/client/utils.py
+++ b/elasticsearch_serverless/_sync/client/utils.py
@@ -61,7 +61,7 @@
 # Default User-Agent used by the client
 USER_AGENT = create_user_agent("elasticsearch-py", __versionstr__)
 
-_TYPE_HOST = Union[str, Mapping, NodeConfig]
+_TYPE_HOST = Union[str, Mapping[str, Union[str, int]], NodeConfig]
 
 _TRANSPORT_OPTIONS = {
     "api_key",
diff --git a/elasticsearch_serverless/helpers/actions.py b/elasticsearch_serverless/helpers/actions.py
index a218c5e..100ae2f 100644
--- a/elasticsearch_serverless/helpers/actions.py
+++ b/elasticsearch_serverless/helpers/actions.py
@@ -262,7 +262,7 @@ def _process_bulk_chunk_success(
         if not ok and raise_on_error and status_code not in ignore_status:
             # include original document source
             if len(data) > 1:
-                item["data"] = data[1]  # type: ignore[misc]
+                item["data"] = data[1]
             errors.append({op_type: item})
 
         if ok or not errors:
@@ -299,7 +299,7 @@ def _process_bulk_chunk_error(
         op_type, action = data[0].copy().popitem()
         info = {"error": err_message, "status": error.status_code, "exception": error}
         if op_type != "delete" and len(data) > 1:
-            info["data"] = data[1]  # type: ignore[misc]
+            info["data"] = data[1]
         info.update(action)
         exc_errors.append({op_type: info})
 
diff --git a/noxfile.py b/noxfile.py
index ccaca59..1054305 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -27,11 +27,13 @@
     "test_elasticsearch_serverless/",
     "utils/",
 )
+# Allow building aiohttp when no wheels are available (eg. for recent Python versions)
+INSTALL_ENV = {"AIOHTTP_NO_EXTENSIONS": "1"}
 
 
 @nox.session(python=["3.7", "3.8", "3.9", "3.10", "3.11"])
 def test(session):
-    session.install(".[dev]")
+    session.install(".[dev]", env=INSTALL_ENV, silent=False)
 
     junit_xml = os.path.join(
         SOURCE_DIR, "junit", "elasticsearch-serverless-python-junit.xml"
@@ -72,7 +74,7 @@ def lint(session):
     session.run("python", "utils/license-headers.py", "check", *SOURCE_FILES)
 
     # Workaround to make '-r' to still work despite uninstalling aiohttp below.
-    session.install(".[async,requests]")
+    session.install(".[async,requests]", env=INSTALL_ENV)
 
     # Run mypy on the package and then the type examples separately for
     # the two different mypy use-cases, ourselves and our users.