diff --git a/Tests/System.Threading.CancellationToken/System.Threading.CancellationToken.nfproj b/Tests/System.Threading.CancellationToken/System.Threading.CancellationToken.nfproj
index c278df6..3be9cd9 100644
--- a/Tests/System.Threading.CancellationToken/System.Threading.CancellationToken.nfproj
+++ b/Tests/System.Threading.CancellationToken/System.Threading.CancellationToken.nfproj
@@ -30,14 +30,14 @@
     <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.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/System.Threading.CancellationToken/packages.config b/Tests/System.Threading.CancellationToken/packages.config
index 74151e0..0807a38 100644
--- a/Tests/System.Threading.CancellationToken/packages.config
+++ b/Tests/System.Threading.CancellationToken/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.TestFramework" version="3.0.67" targetFramework="netnano1.0" developmentDependency="true" />
-</packages>
\ No newline at end of file
+  <package id="nanoFramework.CoreLibrary" version="1.17.1" targetFramework="netnano1.0" />
+  <package id="nanoFramework.TestFramework" version="3.0.68" targetFramework="netnano1.0" developmentDependency="true" />
+</packages>
diff --git a/Tests/System.Threading.CancellationToken/packages.lock.json b/Tests/System.Threading.CancellationToken/packages.lock.json
index a7eaa97..510c5a2 100644
--- a/Tests/System.Threading.CancellationToken/packages.lock.json
+++ b/Tests/System.Threading.CancellationToken/packages.lock.json
@@ -4,15 +4,15 @@
     ".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.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.System.Threading.nuspec b/nanoFramework.System.Threading.nuspec
index 4e8af20..620082a 100644
--- a/nanoFramework.System.Threading.nuspec
+++ b/nanoFramework.System.Threading.nuspec
@@ -18,7 +18,7 @@
     <description>This package includes the nanoFramework.System.Threading assembly for .NET nanoFramework C# projects.</description>
     <tags>nanoFramework C# csharp netmf netnf </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.System.Threading/nanoFramework.System.Threading.nfproj b/nanoFramework.System.Threading/nanoFramework.System.Threading.nfproj
index e6d1c91..c2d7ce4 100644
--- a/nanoFramework.System.Threading/nanoFramework.System.Threading.nfproj
+++ b/nanoFramework.System.Threading/nanoFramework.System.Threading.nfproj
@@ -68,8 +68,8 @@
     <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.System.Threading/packages.config b/nanoFramework.System.Threading/packages.config
index 63b66bd..a24f447 100644
--- a/nanoFramework.System.Threading/packages.config
+++ b/nanoFramework.System.Threading/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" developmentDependency="true" targetFramework="netnano1.0" />
 </packages>
\ No newline at end of file
diff --git a/nanoFramework.System.Threading/packages.lock.json b/nanoFramework.System.Threading/packages.lock.json
index 1f561cc..7450bf8 100644
--- a/nanoFramework.System.Threading/packages.lock.json
+++ b/nanoFramework.System.Threading/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",