diff --git a/src/IotHubMessaging.cs b/src/IotHubMessaging.cs
index 924e382..ea5930f 100644
--- a/src/IotHubMessaging.cs
+++ b/src/IotHubMessaging.cs
@@ -317,7 +317,7 @@ namespace Opc.Ua.Publisher
             if (_sendTimer != null)
             {
                 // send in x seconds
-                Trace(Utils.TraceMasks.OperationDetail, $"Retart timer to send data to IoTHub in {_defaultSendIntervalSeconds} seconds.");
+                Trace(Utils.TraceMasks.OperationDetail, $"Retart timer to send data to IoTHub in {_defaultSendIntervalSeconds} second(s).");
                 _sendTimer.Change(TimeSpan.FromSeconds(_defaultSendIntervalSeconds), TimeSpan.FromSeconds(_defaultSendIntervalSeconds));
             }
 
diff --git a/src/Opc.Ua.Publisher.csproj b/src/Opc.Ua.Publisher.csproj
index 6c2f376..6e31e78 100644
--- a/src/Opc.Ua.Publisher.csproj
+++ b/src/Opc.Ua.Publisher.csproj
@@ -37,8 +37,8 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Azure.Devices" Version="1.3.1" />
-    <PackageReference Include="Microsoft.Azure.Devices.Client" Version="1.4.1" />
+    <PackageReference Include="Microsoft.Azure.Devices" Version="1.3.2" />
+    <PackageReference Include="Microsoft.Azure.Devices.Client" Version="1.4.2" />
     <PackageReference Include="Mono.Options" Version="5.3.0.1" />
     <PackageReference Include="OPCFoundation.NetStandard.Opc.Ua" Version="0.4.1" />
     <PackageReference Include="System.Threading.Timer" Version="4.3.0" />
diff --git a/src/Program.cs b/src/Program.cs
index 79f376c..c87dd92 100644
--- a/src/Program.cs
+++ b/src/Program.cs
@@ -258,7 +258,7 @@ namespace Opc.Ua.Publisher
                             }
                         }
                     },
-                    { "st|opcstacktracemask=", $"the trace mask for the OPC stack. See github OPC .NET stack for definitions.\nTo enable IoTHub telemetry tracing set it to 711.\n(Information is enforced)\nDefault: 0x{OpcStackTraceMask:X}  ({Program.OpcStackTraceMask})", (int i) => {
+                    { "st|opcstacktracemask=", $"the trace mask for the OPC stack. See github OPC .NET stack for definitions.\nTo enable IoTHub telemetry tracing set it to 711. Information mask 0x2 is enforced.\nDefault: {OpcStackTraceMask:X}  ({Program.OpcStackTraceMask})", (int i) => {
                             if (i >= 0)
                             {
                                 OpcStackTraceMask = i;