diff --git a/bimmer_connected/api/authentication.py b/bimmer_connected/api/authentication.py
index 7652e523..bab6415f 100644
--- a/bimmer_connected/api/authentication.py
+++ b/bimmer_connected/api/authentication.py
@@ -14,7 +14,7 @@
 from Crypto.Cipher import PKCS1_v1_5
 from Crypto.PublicKey import RSA
 
-from bimmer_connected.api.regions import Regions, get_app_version, get_ocp_apim_key, get_server_url
+from bimmer_connected.api.regions import Regions, get_app_version, get_ocp_apim_key, get_server_url, get_user_agent
 from bimmer_connected.api.utils import (
     create_s256_code_challenge,
     generate_cn_nonce,
@@ -31,7 +31,6 @@
     AUTH_CHINA_TOKEN_URL,
     HTTPX_TIMEOUT,
     OAUTH_CONFIG_URL,
-    USER_AGENT,
     X_USER_AGENT,
 )
 from bimmer_connected.models import MyBMWAPIError
@@ -358,7 +357,7 @@ def __init__(self, *args, **kwargs):
         region = kwargs.pop("region")
         kwargs["base_url"] = get_server_url(region)
         kwargs["headers"] = {
-            "user-agent": USER_AGENT,
+            "user-agent": get_user_agent(region),
             "x-user-agent": X_USER_AGENT.format(brand="bmw", app_version=get_app_version(region), region=region.value),
         }
 
diff --git a/bimmer_connected/api/client.py b/bimmer_connected/api/client.py
index 14b294c7..30d2d211 100644
--- a/bimmer_connected/api/client.py
+++ b/bimmer_connected/api/client.py
@@ -8,9 +8,9 @@
 import httpx
 
 from bimmer_connected.api.authentication import MyBMWAuthentication
-from bimmer_connected.api.regions import get_app_version, get_server_url
+from bimmer_connected.api.regions import get_app_version, get_server_url, get_user_agent
 from bimmer_connected.api.utils import anonymize_response, get_correlation_id, handle_httpstatuserror
-from bimmer_connected.const import HTTPX_TIMEOUT, USER_AGENT, X_USER_AGENT, CarBrands
+from bimmer_connected.const import HTTPX_TIMEOUT, X_USER_AGENT, CarBrands
 from bimmer_connected.models import AnonymizedResponse, GPSPosition
 
 _LOGGER = logging.getLogger(__name__)
@@ -82,7 +82,7 @@ def generate_default_header(self, brand: Optional[CarBrands] = None) -> Dict[str
         return {
             "accept": "application/json",
             "accept-language": "en",
-            "user-agent": USER_AGENT,
+            "user-agent": get_user_agent(self.config.authentication.region),
             "x-user-agent": X_USER_AGENT.format(
                 brand=(brand or CarBrands.BMW).value,
                 app_version=get_app_version(self.config.authentication.region),
diff --git a/bimmer_connected/api/regions.py b/bimmer_connected/api/regions.py
index 82425548..4fb6c6c4 100644
--- a/bimmer_connected/api/regions.py
+++ b/bimmer_connected/api/regions.py
@@ -2,7 +2,7 @@
 from base64 import b64decode
 from typing import List
 
-from bimmer_connected.const import APP_VERSIONS, OCP_APIM_KEYS, SERVER_URLS_MYBMW, Regions
+from bimmer_connected.const import APP_VERSIONS, OCP_APIM_KEYS, SERVER_URLS_MYBMW, USER_AGENTS, Regions
 
 
 def valid_regions() -> List[str]:
@@ -26,6 +26,11 @@ def get_server_url(region: Regions) -> str:
     return f"https://{SERVER_URLS_MYBMW[region]}"
 
 
+def get_user_agent(region: Regions) -> str:
+    """Get the Dart user agent for the region."""
+    return USER_AGENTS[region]
+
+
 def get_app_version(region: Regions) -> str:
     """Get the app version & build number for the region."""
     return APP_VERSIONS[region]
diff --git a/bimmer_connected/const.py b/bimmer_connected/const.py
index eca2d17b..ad2a8985 100644
--- a/bimmer_connected/const.py
+++ b/bimmer_connected/const.py
@@ -37,14 +37,18 @@ class Regions(str, Enum):
 }
 
 APP_VERSIONS = {
-    Regions.NORTH_AMERICA: "3.3.1(22418)",
-    Regions.REST_OF_WORLD: "3.3.1(22418)",
+    Regions.NORTH_AMERICA: "3.9.0(27760)",
+    Regions.REST_OF_WORLD: "3.9.0(27760)",
     Regions.CHINA: "3.6.1(23634)",
 }
 
 HTTPX_TIMEOUT = 30.0
 
-USER_AGENT = "Dart/2.18 (dart:io)"
+USER_AGENTS = {
+    Regions.NORTH_AMERICA: "Dart/2.19 (dart:io)",
+    Regions.REST_OF_WORLD: "Dart/2.19 (dart:io)",
+    Regions.CHINA: "Dart/2.18 (dart:io)",
+}
 X_USER_AGENT = "android(TQ2A.230405.003.B2);{brand};{app_version};{region}"