diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2c04fdb..f114ebd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.4.3] Q3 2022
+ - fixed SAS Token expired handling
+ - bump to azure-iot-sdk 0.8.3
+
 ## [0.4.2] Q3 2022
  - bump to azure-iot-sdk 0.8.2
 
@@ -19,7 +23,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  - bump to azure-iot-sdk 0.8.1
 
 ## [0.3.1] Q2 2022
- - fixed readme 
+ - fixed readme
 
 ## [0.3.0] Q2 2022
  - bump to azure-iot-sdk 0.8.0:
@@ -40,7 +44,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
    - notify watchdog
 
 ## [0.2.1] Q1 2022
- - add D2C messages 
+ - add D2C messages
 
 ## [0.2.0] Q1 2022
  - renamed package and repo to iot-module-template-rs
diff --git a/Cargo.lock b/Cargo.lock
index 24e1d15..d499f01 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -182,8 +182,8 @@ dependencies = [
 
 [[package]]
 name = "azure-iot-sdk"
-version = "0.8.2"
-source = "git+ssh://git@github.com/ICS-DeviceManagement/azure-iot-sdk.git?tag=0.8.2#439595f47688cb5f3d78a7862742cbc551588cec"
+version = "0.8.3"
+source = "git+ssh://git@github.com/ICS-DeviceManagement/azure-iot-sdk.git?tag=0.8.3#fb30e8fd71f02b596858f24e49de5763a534dbc7"
 dependencies = [
  "azure-iot-sdk-sys",
  "eis-utils",
@@ -194,8 +194,8 @@ dependencies = [
 
 [[package]]
 name = "azure-iot-sdk-sys"
-version = "0.5.0"
-source = "git+ssh://git@github.com/ICS-DeviceManagement/azure-iot-sdk-sys.git?tag=0.5.0#0acdf6a7ac32a21b57bbb44b640f91a427a30ae4"
+version = "0.5.1"
+source = "git+ssh://git@github.com/ICS-DeviceManagement/azure-iot-sdk-sys.git?tag=0.5.1#0024059836411a8f6b8f54f3061d31f2a2fef1db"
 dependencies = [
  "bindgen",
  "pkg-config",
@@ -800,7 +800,7 @@ dependencies = [
 
 [[package]]
 name = "iot-client-template-rs"
-version = "0.4.2"
+version = "0.4.3"
 dependencies = [
  "azure-iot-sdk",
  "env_logger 0.8.4",
diff --git a/Cargo.toml b/Cargo.toml
index e94a209..78a643a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "iot-client-template-rs"
-version = "0.4.2"
+version = "0.4.3"
 edition = "2021"
 authors = ["Joerg Zeidler <joerg.zeidler@conplement.de>", "Jan Zachmann <jan.zachmann@conplement.de>"]
 repository = "git@github.com:ICS-DeviceManagement/iot-client-template-rs.git"
@@ -10,7 +10,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 # use either device_client, module_client or edge_client
-azure-iot-sdk = { git = "ssh://git@github.com/ICS-DeviceManagement/azure-iot-sdk.git", tag = "0.8.2", default-features = false }
+azure-iot-sdk = { git = "ssh://git@github.com/ICS-DeviceManagement/azure-iot-sdk.git", tag = "0.8.3", default-features = false }
 sd-notify = { git = "ssh://git@github.com/ICS-DeviceManagement/sd-notify.git", tag = "v0.5.0", optional = true }
 serde_json = "1.0"
 env_logger = "0.8"
diff --git a/src/lib.rs b/src/lib.rs
index c3c8adb..b031ba7 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -6,7 +6,7 @@ pub mod systemd;
 pub mod twin;
 use azure_iot_sdk::client::*;
 use client::{Client, Message};
-use log::{debug, error};
+use log::{info, debug, error};
 use std::sync::{mpsc, Arc, Mutex};
 
 #[tokio::main]
@@ -30,11 +30,17 @@ pub async fn run() -> Result<(), IotError> {
                 }
             }
             Message::Unauthenticated(reason) => {
-                client.stop().await.unwrap();
-                return Err(IotError::from(format!(
-                    "No connection. Reason: {:?}",
-                    reason
-                )));
+                if let UnauthenticatedReason::ExpiredSasToken = reason  {
+                    info!("SAS Token expired, SDK will try to refresh the token automatically");
+                }
+                else {
+                    client.stop().await.unwrap();
+                    return Err(IotError::from(format!(
+                        "No connection. Reason: {:?}",
+                        reason
+                    )));
+                }
+
             }
             Message::Desired(state, desired) => {
                 twin::update(state, desired, Arc::clone(&tx_app2client));