diff --git a/System.IO.FileSystem/System.IO.FileSystem.nfproj b/System.IO.FileSystem/System.IO.FileSystem.nfproj
index eb88047..06c5c2d 100644
--- a/System.IO.FileSystem/System.IO.FileSystem.nfproj
+++ b/System.IO.FileSystem/System.IO.FileSystem.nfproj
@@ -62,12 +62,12 @@
     </NFMDP_PE_ExcludeClassByName>
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="mscorlib, Version=1.10.5.4, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.CoreLibrary.1.10.5\lib\mscorlib.dll</HintPath>
+    <Reference Include="mscorlib, Version=1.11.6.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\packages\nanoFramework.CoreLibrary.1.11.6-preview.2\lib\mscorlib.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="nanoFramework.Runtime.Events, Version=1.9.2.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.Runtime.Events.1.9.2-preview.8\lib\nanoFramework.Runtime.Events.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.Runtime.Events.1.9.2-preview.12\lib\nanoFramework.Runtime.Events.dll</HintPath>
       <Private>True</Private>
     </Reference>
   </ItemGroup>
diff --git a/System.IO.FileSystem/packages.config b/System.IO.FileSystem/packages.config
index 4c86f52..fe94acf 100644
--- a/System.IO.FileSystem/packages.config
+++ b/System.IO.FileSystem/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="1.10.5" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.Runtime.Events" version="1.9.2-preview.8" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.CoreLibrary" version="1.11.6-preview.2" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.Runtime.Events" version="1.9.2-preview.12" targetFramework="netnanoframework10" />
   <package id="Nerdbank.GitVersioning" version="3.4.231" developmentDependency="true" targetFramework="netnanoframework10" />
 </packages>
\ No newline at end of file
diff --git a/Tests/NFUnitTestMemoryStream/NFUnitTestMemoryStream.nfproj b/Tests/NFUnitTestMemoryStream/NFUnitTestMemoryStream.nfproj
index aceb942..d3ff1aa 100644
--- a/Tests/NFUnitTestMemoryStream/NFUnitTestMemoryStream.nfproj
+++ b/Tests/NFUnitTestMemoryStream/NFUnitTestMemoryStream.nfproj
@@ -31,19 +31,17 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="mscorlib, Version=1.10.5.4, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.CoreLibrary.1.10.5\lib\mscorlib.dll</HintPath>
+    <Reference Include="mscorlib, Version=1.11.6.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\..\packages\nanoFramework.CoreLibrary.1.11.6-preview.2\lib\mscorlib.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="nanoFramework.TestFramework, Version=1.0.157.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.TestFramework.1.0.157\lib\nanoFramework.TestFramework.dll</HintPath>
+    <Reference Include="nanoFramework.TestFramework, Version=1.0.162.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\..\packages\nanoFramework.TestFramework.1.0.162\lib\nanoFramework.TestFramework.dll</HintPath>
       <Private>True</Private>
-      <SpecificVersion>True</SpecificVersion>
     </Reference>
     <Reference Include="nanoFramework.UnitTestLauncher, Version=0.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.TestFramework.1.0.157\lib\nanoFramework.UnitTestLauncher.exe</HintPath>
+      <HintPath>..\..\packages\nanoFramework.TestFramework.1.0.162\lib\nanoFramework.UnitTestLauncher.exe</HintPath>
       <Private>True</Private>
-      <SpecificVersion>True</SpecificVersion>
     </Reference>
   </ItemGroup>
   <ItemGroup>
@@ -60,11 +58,11 @@
       <ProjectConfigurationsDeclaredAsItems />
     </ProjectCapabilities>
   </ProjectExtensions>
-  <Import Project="..\..\packages\nanoFramework.TestFramework.1.0.157\build\nanoFramework.TestFramework.targets" Condition="Exists('..\..\packages\nanoFramework.TestFramework.1.0.157\build\nanoFramework.TestFramework.targets')" />
+  <Import Project="..\..\packages\nanoFramework.TestFramework.1.0.162\build\nanoFramework.TestFramework.targets" Condition="Exists('..\..\packages\nanoFramework.TestFramework.1.0.162\build\nanoFramework.TestFramework.targets')" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105.The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('..\..\packages\nanoFramework.TestFramework.1.0.157\build\nanoFramework.TestFramework.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\nanoFramework.TestFramework.1.0.157\build\nanoFramework.TestFramework.targets'))" />
+    <Error Condition="!Exists('..\..\packages\nanoFramework.TestFramework.1.0.162\build\nanoFramework.TestFramework.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\nanoFramework.TestFramework.1.0.162\build\nanoFramework.TestFramework.targets'))" />
   </Target>
 </Project>
\ No newline at end of file
diff --git a/Tests/NFUnitTestMemoryStream/packages.config b/Tests/NFUnitTestMemoryStream/packages.config
index 2c4413a..5822f5b 100644
--- a/Tests/NFUnitTestMemoryStream/packages.config
+++ b/Tests/NFUnitTestMemoryStream/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="1.10.5" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.TestFramework" version="1.0.157" targetFramework="netnanoframework10" developmentDependency="true" />
+  <package id="nanoFramework.CoreLibrary" version="1.11.6-preview.2" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.TestFramework" version="1.0.162" targetFramework="netnanoframework10" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/nanoFramework.System.IO.FileSystem.nuspec b/nanoFramework.System.IO.FileSystem.nuspec
index d292555..e968e77 100644
--- a/nanoFramework.System.IO.FileSystem.nuspec
+++ b/nanoFramework.System.IO.FileSystem.nuspec
@@ -16,11 +16,12 @@
     <icon>images\nf-logo.png</icon>
     <repository type="git" url="https://github.com/nanoframework/System.IO.FileSystem" commit="$commit$" />
     <copyright>Copyright (c) .NET Foundation and Contributors</copyright>
-    <description>This package includes the System.IO.FileSystem assembly for .NET nanoFramework C# projects.&#10;This package requires a target with System.IO.FileSystem v$nativeVersion$ (checksum $checksum$).</description>
+    <description>This package includes the System.IO.FileSystem assembly for .NET nanoFramework C# projects.
+This package requires a target with System.IO.FileSystem v$nativeVersion$ (checksum $checksum$).</description>
     <tags>nanoFramework C# csharp netmf netnf System.IO.FileSystem</tags>
     <dependencies>
-      <dependency id="nanoFramework.CoreLibrary" version="1.10.5" />
-      <dependency id="nanoFramework.Runtime.Events" version="1.9.2-preview.8" />
+      <dependency id="nanoFramework.CoreLibrary" version="1.11.6-preview.2" />
+      <dependency id="nanoFramework.Runtime.Events" version="1.9.2-preview.12" />
     </dependencies>
   </metadata>
   <files>