diff --git a/M2Mqtt/nanoFramework.M2Mqtt.nfproj b/M2Mqtt/nanoFramework.M2Mqtt.nfproj
index 38e93f1c..7f30a00a 100644
--- a/M2Mqtt/nanoFramework.M2Mqtt.nfproj
+++ b/M2Mqtt/nanoFramework.M2Mqtt.nfproj
@@ -79,8 +79,8 @@
     <None Include="packages.lock.json" />
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="mscorlib, Version=1.16.11.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.CoreLibrary.1.16.11\lib\mscorlib.dll</HintPath>
+    <Reference Include="mscorlib, Version=1.17.1.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\packages\nanoFramework.CoreLibrary.1.17.1\lib\mscorlib.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.Runtime.Events, Version=1.11.29.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\packages\nanoFramework.Runtime.Events.1.11.29\lib\nanoFramework.Runtime.Events.dll</HintPath>
diff --git a/M2Mqtt/packages.config b/M2Mqtt/packages.config
index 4350cee2..47cc1b8c 100644
--- a/M2Mqtt/packages.config
+++ b/M2Mqtt/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="1.16.11" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="1.17.1" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Events" version="1.11.29" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Native" version="1.7.8" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Collections" version="1.5.59" targetFramework="netnano1.0" />
diff --git a/M2Mqtt/packages.lock.json b/M2Mqtt/packages.lock.json
index dc5b3b34..10dc249d 100644
--- a/M2Mqtt/packages.lock.json
+++ b/M2Mqtt/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[1.16.11, 1.16.11]",
-        "resolved": "1.16.11",
-        "contentHash": "2XW+Zn0lQ+lOcxDbB1l2ga2rNoj9Jv2IeJwXE4ka1r+swmxn5N/otlMJVEXJgK8trUeD/E8T7+J7dXjU8UReHw=="
+        "requested": "[1.17.1, 1.17.1]",
+        "resolved": "1.17.1",
+        "contentHash": "T/iPvP8AeZs/5UeZgVa2cZVbl79ioeRyBJLzx4qvKbE9RE+984AR5WPY4tjGIdXugs1AFUYYnydvuGCpy+P1ww=="
       },
       "nanoFramework.Runtime.Events": {
         "type": "Direct",
diff --git a/TestMqtt/Mosquito.TemperatureGauge/Mosquito.TemperatureGauge.nfproj b/TestMqtt/Mosquito.TemperatureGauge/Mosquito.TemperatureGauge.nfproj
index 6e6ceb29..e8b90643 100644
--- a/TestMqtt/Mosquito.TemperatureGauge/Mosquito.TemperatureGauge.nfproj
+++ b/TestMqtt/Mosquito.TemperatureGauge/Mosquito.TemperatureGauge.nfproj
@@ -28,8 +28,8 @@
     <ProjectReference Include="..\..\nanoFramework.M2Mqtt.Core\nanoFramework.M2Mqtt.Core.nfproj" />
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="mscorlib, Version=1.16.11.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.CoreLibrary.1.16.11\lib\mscorlib.dll</HintPath>
+    <Reference Include="mscorlib, Version=1.17.1.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\..\packages\nanoFramework.CoreLibrary.1.17.1\lib\mscorlib.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.Runtime.Events, Version=1.11.29.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\..\packages\nanoFramework.Runtime.Events.1.11.29\lib\nanoFramework.Runtime.Events.dll</HintPath>
diff --git a/TestMqtt/Mosquito.TemperatureGauge/packages.config b/TestMqtt/Mosquito.TemperatureGauge/packages.config
index 6a346c8d..c76305b3 100644
--- a/TestMqtt/Mosquito.TemperatureGauge/packages.config
+++ b/TestMqtt/Mosquito.TemperatureGauge/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="1.16.11" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="1.17.1" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Events" version="1.11.29" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Native" version="1.7.8" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.IO.Streams" version="1.1.86" targetFramework="netnano1.0" />
diff --git a/TestMqtt/Mosquito.TemperatureGauge/packages.lock.json b/TestMqtt/Mosquito.TemperatureGauge/packages.lock.json
index 79adfc17..8f4df966 100644
--- a/TestMqtt/Mosquito.TemperatureGauge/packages.lock.json
+++ b/TestMqtt/Mosquito.TemperatureGauge/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[1.16.11, 1.16.11]",
-        "resolved": "1.16.11",
-        "contentHash": "2XW+Zn0lQ+lOcxDbB1l2ga2rNoj9Jv2IeJwXE4ka1r+swmxn5N/otlMJVEXJgK8trUeD/E8T7+J7dXjU8UReHw=="
+        "requested": "[1.17.1, 1.17.1]",
+        "resolved": "1.17.1",
+        "contentHash": "T/iPvP8AeZs/5UeZgVa2cZVbl79ioeRyBJLzx4qvKbE9RE+984AR5WPY4tjGIdXugs1AFUYYnydvuGCpy+P1ww=="
       },
       "nanoFramework.Runtime.Events": {
         "type": "Direct",
diff --git a/TestMqtt/TestAppv5.0/TestAppv5.0.nfproj b/TestMqtt/TestAppv5.0/TestAppv5.0.nfproj
index cb19f42c..81b41ea6 100644
--- a/TestMqtt/TestAppv5.0/TestAppv5.0.nfproj
+++ b/TestMqtt/TestAppv5.0/TestAppv5.0.nfproj
@@ -29,8 +29,8 @@
     <ProjectReference Include="..\..\nanoFramework.M2Mqtt.Core\nanoFramework.M2Mqtt.Core.nfproj" />
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="mscorlib, Version=1.16.11.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.CoreLibrary.1.16.11\lib\mscorlib.dll</HintPath>
+    <Reference Include="mscorlib, Version=1.17.1.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\..\packages\nanoFramework.CoreLibrary.1.17.1\lib\mscorlib.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.Runtime.Events, Version=1.11.29.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\..\packages\nanoFramework.Runtime.Events.1.11.29\lib\nanoFramework.Runtime.Events.dll</HintPath>
diff --git a/TestMqtt/TestAppv5.0/packages.config b/TestMqtt/TestAppv5.0/packages.config
index f8a2b4ee..bb1623b0 100644
--- a/TestMqtt/TestAppv5.0/packages.config
+++ b/TestMqtt/TestAppv5.0/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="1.16.11" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="1.17.1" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Events" version="1.11.29" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Device.Wifi" version="1.5.115" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.IO.Streams" version="1.1.86" targetFramework="netnano1.0" />
diff --git a/TestMqtt/TestAppv5.0/packages.lock.json b/TestMqtt/TestAppv5.0/packages.lock.json
index 5b8e0eea..4072f20d 100644
--- a/TestMqtt/TestAppv5.0/packages.lock.json
+++ b/TestMqtt/TestAppv5.0/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[1.16.11, 1.16.11]",
-        "resolved": "1.16.11",
-        "contentHash": "2XW+Zn0lQ+lOcxDbB1l2ga2rNoj9Jv2IeJwXE4ka1r+swmxn5N/otlMJVEXJgK8trUeD/E8T7+J7dXjU8UReHw=="
+        "requested": "[1.17.1, 1.17.1]",
+        "resolved": "1.17.1",
+        "contentHash": "T/iPvP8AeZs/5UeZgVa2cZVbl79ioeRyBJLzx4qvKbE9RE+984AR5WPY4tjGIdXugs1AFUYYnydvuGCpy+P1ww=="
       },
       "nanoFramework.Runtime.Events": {
         "type": "Direct",
diff --git a/TestMqtt/TestMqtt-mosquittov3.1.1/TestMqtt-mosquittov3.1.1.nfproj b/TestMqtt/TestMqtt-mosquittov3.1.1/TestMqtt-mosquittov3.1.1.nfproj
index 7831a4db..1947321e 100644
--- a/TestMqtt/TestMqtt-mosquittov3.1.1/TestMqtt-mosquittov3.1.1.nfproj
+++ b/TestMqtt/TestMqtt-mosquittov3.1.1/TestMqtt-mosquittov3.1.1.nfproj
@@ -24,8 +24,8 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="mscorlib, Version=1.16.11.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.CoreLibrary.1.16.11\lib\mscorlib.dll</HintPath>
+    <Reference Include="mscorlib, Version=1.17.1.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\..\packages\nanoFramework.CoreLibrary.1.17.1\lib\mscorlib.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.Runtime.Events, Version=1.11.29.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\..\packages\nanoFramework.Runtime.Events.1.11.29\lib\nanoFramework.Runtime.Events.dll</HintPath>
diff --git a/TestMqtt/TestMqtt-mosquittov3.1.1/packages.config b/TestMqtt/TestMqtt-mosquittov3.1.1/packages.config
index 4078ed48..eeef993e 100644
--- a/TestMqtt/TestMqtt-mosquittov3.1.1/packages.config
+++ b/TestMqtt/TestMqtt-mosquittov3.1.1/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="1.16.11" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="1.17.1" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Events" version="1.11.29" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.IO.Streams" version="1.1.86" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Net" version="1.11.27" targetFramework="netnano1.0" />
diff --git a/TestMqtt/TestMqtt-mosquittov3.1.1/packages.lock.json b/TestMqtt/TestMqtt-mosquittov3.1.1/packages.lock.json
index 62e99270..72347774 100644
--- a/TestMqtt/TestMqtt-mosquittov3.1.1/packages.lock.json
+++ b/TestMqtt/TestMqtt-mosquittov3.1.1/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[1.16.11, 1.16.11]",
-        "resolved": "1.16.11",
-        "contentHash": "2XW+Zn0lQ+lOcxDbB1l2ga2rNoj9Jv2IeJwXE4ka1r+swmxn5N/otlMJVEXJgK8trUeD/E8T7+J7dXjU8UReHw=="
+        "requested": "[1.17.1, 1.17.1]",
+        "resolved": "1.17.1",
+        "contentHash": "T/iPvP8AeZs/5UeZgVa2cZVbl79ioeRyBJLzx4qvKbE9RE+984AR5WPY4tjGIdXugs1AFUYYnydvuGCpy+P1ww=="
       },
       "nanoFramework.Runtime.Events": {
         "type": "Direct",
diff --git a/Tests/MemoryLeakTestApp/MemoryLeakTestApp.nfproj b/Tests/MemoryLeakTestApp/MemoryLeakTestApp.nfproj
index 10c8e1d7..076945c0 100644
--- a/Tests/MemoryLeakTestApp/MemoryLeakTestApp.nfproj
+++ b/Tests/MemoryLeakTestApp/MemoryLeakTestApp.nfproj
@@ -31,8 +31,8 @@
     <Content Include="packages.lock.json" />
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="mscorlib, Version=1.16.11.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.CoreLibrary.1.16.11\lib\mscorlib.dll</HintPath>
+    <Reference Include="mscorlib, Version=1.17.1.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\..\packages\nanoFramework.CoreLibrary.1.17.1\lib\mscorlib.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.Runtime.Events, Version=1.11.29.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\..\packages\nanoFramework.Runtime.Events.1.11.29\lib\nanoFramework.Runtime.Events.dll</HintPath>
diff --git a/Tests/MemoryLeakTestApp/packages.config b/Tests/MemoryLeakTestApp/packages.config
index 88a5ed60..574ea20c 100644
--- a/Tests/MemoryLeakTestApp/packages.config
+++ b/Tests/MemoryLeakTestApp/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="1.16.11" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="1.17.1" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Events" version="1.11.29" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Native" version="1.7.8" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Device.Wifi" version="1.5.115" targetFramework="netnano1.0" />
diff --git a/Tests/MemoryLeakTestApp/packages.lock.json b/Tests/MemoryLeakTestApp/packages.lock.json
index c554ae96..2e3f810a 100644
--- a/Tests/MemoryLeakTestApp/packages.lock.json
+++ b/Tests/MemoryLeakTestApp/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[1.16.11, 1.16.11]",
-        "resolved": "1.16.11",
-        "contentHash": "2XW+Zn0lQ+lOcxDbB1l2ga2rNoj9Jv2IeJwXE4ka1r+swmxn5N/otlMJVEXJgK8trUeD/E8T7+J7dXjU8UReHw=="
+        "requested": "[1.17.1, 1.17.1]",
+        "resolved": "1.17.1",
+        "contentHash": "T/iPvP8AeZs/5UeZgVa2cZVbl79ioeRyBJLzx4qvKbE9RE+984AR5WPY4tjGIdXugs1AFUYYnydvuGCpy+P1ww=="
       },
       "nanoFramework.Runtime.Events": {
         "type": "Direct",
diff --git a/Tests/MessageUnitTests/MessageUnitTests.nfproj b/Tests/MessageUnitTests/MessageUnitTests.nfproj
index 2664f4ec..cdf23f26 100644
--- a/Tests/MessageUnitTests/MessageUnitTests.nfproj
+++ b/Tests/MessageUnitTests/MessageUnitTests.nfproj
@@ -56,17 +56,17 @@
     <Compile Include="UnsubscribeTests.cs" />
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="mscorlib, Version=1.16.11.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.CoreLibrary.1.16.11\lib\mscorlib.dll</HintPath>
+    <Reference Include="mscorlib, Version=1.17.1.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\..\packages\nanoFramework.CoreLibrary.1.17.1\lib\mscorlib.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.System.Text, Version=1.3.16.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\..\packages\nanoFramework.System.Text.1.3.16\lib\nanoFramework.System.Text.dll</HintPath>
     </Reference>
-    <Reference Include="nanoFramework.TestFramework, Version=3.0.67.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.TestFramework.3.0.67\lib\nanoFramework.TestFramework.dll</HintPath>
+    <Reference Include="nanoFramework.TestFramework, Version=3.0.68.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\..\packages\nanoFramework.TestFramework.3.0.68\lib\nanoFramework.TestFramework.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.UnitTestLauncher, Version=0.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.TestFramework.3.0.67\lib\nanoFramework.UnitTestLauncher.exe</HintPath>
+      <HintPath>..\..\packages\nanoFramework.TestFramework.3.0.68\lib\nanoFramework.UnitTestLauncher.exe</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/Tests/MessageUnitTests/packages.config b/Tests/MessageUnitTests/packages.config
index 7b3ffd4f..694bb79d 100644
--- a/Tests/MessageUnitTests/packages.config
+++ b/Tests/MessageUnitTests/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="1.16.11" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="1.17.1" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Text" version="1.3.16" targetFramework="netnano1.0" />
-  <package id="nanoFramework.TestFramework" version="3.0.67" targetFramework="netnano1.0" developmentDependency="true" />
+  <package id="nanoFramework.TestFramework" version="3.0.68" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/Tests/MessageUnitTests/packages.lock.json b/Tests/MessageUnitTests/packages.lock.json
index 3b6e0731..f1d381b5 100644
--- a/Tests/MessageUnitTests/packages.lock.json
+++ b/Tests/MessageUnitTests/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[1.16.11, 1.16.11]",
-        "resolved": "1.16.11",
-        "contentHash": "2XW+Zn0lQ+lOcxDbB1l2ga2rNoj9Jv2IeJwXE4ka1r+swmxn5N/otlMJVEXJgK8trUeD/E8T7+J7dXjU8UReHw=="
+        "requested": "[1.17.1, 1.17.1]",
+        "resolved": "1.17.1",
+        "contentHash": "T/iPvP8AeZs/5UeZgVa2cZVbl79ioeRyBJLzx4qvKbE9RE+984AR5WPY4tjGIdXugs1AFUYYnydvuGCpy+P1ww=="
       },
       "nanoFramework.System.Text": {
         "type": "Direct",
@@ -16,9 +16,9 @@
       },
       "nanoFramework.TestFramework": {
         "type": "Direct",
-        "requested": "[3.0.67, 3.0.67]",
-        "resolved": "3.0.67",
-        "contentHash": "VMxUKkZlA7chG9fhfCvGTXp7odgPds1GcWOpgDLlWAYKVwPHLEW+MZ3h/FC8JYavo3cReKwu5pUE5CkYl6gN7Q=="
+        "requested": "[3.0.68, 3.0.68]",
+        "resolved": "3.0.68",
+        "contentHash": "K+CKHTFqUW0H46CjkcLOCHcrLJDGmwErisQDXIKvUEgp0gE7rrsAat072aCcjXxojotSwa34hD/NIV4OF7vXgQ=="
       }
     }
   }
diff --git a/nanoFramework.M2Mqtt.Core.nuspec b/nanoFramework.M2Mqtt.Core.nuspec
index b9bdbd6d..6855cc3c 100644
--- a/nanoFramework.M2Mqtt.Core.nuspec
+++ b/nanoFramework.M2Mqtt.Core.nuspec
@@ -18,7 +18,7 @@
     <description>M2Mqtt is a MQTT client available for .NET nanoFramework for M2M communication.</description>
     <tags>m2m mqtt queue messaging internetofthings iot cloud netmf embedded micro netduino micro-framework hardware gadgeteer</tags>
     <dependencies>
-      <dependency id="nanoFramework.CoreLibrary" version="1.16.11" />
+      <dependency id="nanoFramework.CoreLibrary" version="1.17.1" />
     </dependencies>
   </metadata>
   <files>
diff --git a/nanoFramework.M2Mqtt.Core/nanoFramework.M2Mqtt.Core.nfproj b/nanoFramework.M2Mqtt.Core/nanoFramework.M2Mqtt.Core.nfproj
index 309c646e..38882638 100644
--- a/nanoFramework.M2Mqtt.Core/nanoFramework.M2Mqtt.Core.nfproj
+++ b/nanoFramework.M2Mqtt.Core/nanoFramework.M2Mqtt.Core.nfproj
@@ -49,8 +49,8 @@
     <Content Include="packages.lock.json" />
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="mscorlib, Version=1.16.11.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.CoreLibrary.1.16.11\lib\mscorlib.dll</HintPath>
+    <Reference Include="mscorlib, Version=1.17.1.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\packages\nanoFramework.CoreLibrary.1.17.1\lib\mscorlib.dll</HintPath>
     </Reference>
   </ItemGroup>
   <Import Project="$(NanoFrameworkProjectSystemPath)NFProjectSystem.CSharp.targets" Condition="Exists('$(NanoFrameworkProjectSystemPath)NFProjectSystem.CSharp.targets')" />
diff --git a/nanoFramework.M2Mqtt.Core/packages.config b/nanoFramework.M2Mqtt.Core/packages.config
index 8014fbd3..f34f78ca 100644
--- a/nanoFramework.M2Mqtt.Core/packages.config
+++ b/nanoFramework.M2Mqtt.Core/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="1.16.11" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="1.17.1" targetFramework="netnano1.0" />
   <package id="Nerdbank.GitVersioning" version="3.7.115" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/nanoFramework.M2Mqtt.Core/packages.lock.json b/nanoFramework.M2Mqtt.Core/packages.lock.json
index 1f561cce..7450bf8d 100644
--- a/nanoFramework.M2Mqtt.Core/packages.lock.json
+++ b/nanoFramework.M2Mqtt.Core/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[1.16.11, 1.16.11]",
-        "resolved": "1.16.11",
-        "contentHash": "2XW+Zn0lQ+lOcxDbB1l2ga2rNoj9Jv2IeJwXE4ka1r+swmxn5N/otlMJVEXJgK8trUeD/E8T7+J7dXjU8UReHw=="
+        "requested": "[1.17.1, 1.17.1]",
+        "resolved": "1.17.1",
+        "contentHash": "T/iPvP8AeZs/5UeZgVa2cZVbl79ioeRyBJLzx4qvKbE9RE+984AR5WPY4tjGIdXugs1AFUYYnydvuGCpy+P1ww=="
       },
       "Nerdbank.GitVersioning": {
         "type": "Direct",
diff --git a/nanoFramework.M2Mqtt.nuspec b/nanoFramework.M2Mqtt.nuspec
index 8ff1e4b0..59ab93f6 100644
--- a/nanoFramework.M2Mqtt.nuspec
+++ b/nanoFramework.M2Mqtt.nuspec
@@ -18,7 +18,7 @@
     <description>M2Mqtt is a MQTT client available for .NET nanoFramework for M2M communication.</description>
     <tags>m2m mqtt queue messaging internetofthings iot cloud netmf embedded micro netduino micro-framework hardware gadgeteer</tags>
     <dependencies>
-      <dependency id="nanoFramework.CoreLibrary" version="1.16.11" />
+      <dependency id="nanoFramework.CoreLibrary" version="1.17.1" />
       <dependency id="nanoFramework.Runtime.Events" version="1.11.29" />
       <dependency id="nanoFramework.Runtime.Native" version="1.7.8" />
       <dependency id="nanoFramework.System.Collections" version="1.5.59" />