diff --git a/.circleci/config.yml b/.circleci/config.yml
index ead7fa48..f4429ab6 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -198,6 +198,9 @@ workflows:
       - tests-python:
           name: test-3.10
           python-image: "cimg/python:3.10"
+      - tests-python:
+          name: test-3.11
+          python-image: "cimg/python:3.11"
 
   nightly:
     when:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c1904c50..1c27b1e1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 ## 1.35.0 [unreleased]
 
+### CI
+1. [#523](https://github.com/influxdata/influxdb-client-python/pull/523): Add Python 3.11 to CI builds
+
 ## 1.34.0 [2022-10-27]
 
 ### Breaking Changes
diff --git a/setup.py b/setup.py
index 176e9f5a..2afe906c 100644
--- a/setup.py
+++ b/setup.py
@@ -80,6 +80,7 @@
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
+        'Programming Language :: Python :: 3.11',
         'Topic :: Database',
         'Topic :: Software Development :: Libraries',
         'Topic :: Software Development :: Libraries :: Python Modules',
diff --git a/tests/test_InfluxDBClient.py b/tests/test_InfluxDBClient.py
index 98938fb2..741457b4 100644
--- a/tests/test_InfluxDBClient.py
+++ b/tests/test_InfluxDBClient.py
@@ -407,14 +407,16 @@ def test_custom_debug_logging_handler(self):
 
 
 class ServerWithSelfSingedSSL(http.server.SimpleHTTPRequestHandler):
-    def _set_headers(self):
-        self.send_response(200)
-        self.send_header('Content-type', 'application/json')
+    def _set_headers(self, response: bytes):
+        self.send_response(http.HTTPStatus.OK)
+        self.send_header("Content-type", 'application/json')
+        self.send_header("Content-Length", f'{len(response)}')
+        self.send_header("Last-Modified", self.date_time_string())
         self.end_headers()
 
     def do_GET(self):
-        self._set_headers()
         response = json.dumps(
             dict(name="influxdb", message="ready for queries and writes", status="pass", checks=[], version="2.0.0",
                  commit="abcdefgh")).encode('utf-8')
+        self._set_headers(response)
         self.wfile.write(response)