diff --git a/System.IO.FileSystem.UnitTests/System.IO.FileSystem.UnitTests.nfproj b/System.IO.FileSystem.UnitTests/System.IO.FileSystem.UnitTests.nfproj
index ed284f4..9c17c6f 100644
--- a/System.IO.FileSystem.UnitTests/System.IO.FileSystem.UnitTests.nfproj
+++ b/System.IO.FileSystem.UnitTests/System.IO.FileSystem.UnitTests.nfproj
@@ -49,19 +49,19 @@
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-      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.30\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.33\lib\netnano1.0\mscorlib.dll</HintPath>
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     <Reference Include="nanoFramework.System.Text, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.3\lib\nanoFramework.System.Text.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.6\lib\nanoFramework.System.Text.dll</HintPath>
     </Reference>
-    <Reference Include="nanoFramework.TestFramework">
-      <HintPath>..\packages\nanoFramework.TestFramework.4.0.0-preview.45\lib\nanoFramework.TestFramework.dll</HintPath>
+    <Reference Include="nanoFramework.TestFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\packages\nanoFramework.TestFramework.4.0.0-preview.47\lib\nanoFramework.TestFramework.dll</HintPath>
     </Reference>
-    <Reference Include="nanoFramework.UnitTestLauncher">
-      <HintPath>..\packages\nanoFramework.TestFramework.4.0.0-preview.45\lib\nanoFramework.UnitTestLauncher.exe</HintPath>
+    <Reference Include="nanoFramework.UnitTestLauncher, Version=0.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\packages\nanoFramework.TestFramework.4.0.0-preview.47\lib\nanoFramework.UnitTestLauncher.exe</HintPath>
     </Reference>
     <Reference Include="System.IO.Streams, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.IO.Streams.2.0.0-preview.6\lib\System.IO.Streams.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.IO.Streams.2.0.0-preview.8\lib\System.IO.Streams.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/System.IO.FileSystem.UnitTests/packages.config b/System.IO.FileSystem.UnitTests/packages.config
index 0764516..d105179 100644
--- a/System.IO.FileSystem.UnitTests/packages.config
+++ b/System.IO.FileSystem.UnitTests/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.30" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.IO.Streams" version="2.0.0-preview.6" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.Text" version="2.0.0-preview.3" targetFramework="netnano1.0" />
-  <package id="nanoFramework.TestFramework" version="4.0.0-preview.45" targetFramework="netnano1.0" developmentDependency="true" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.33" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.IO.Streams" version="2.0.0-preview.8" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Text" version="2.0.0-preview.6" targetFramework="netnano1.0" />
+  <package id="nanoFramework.TestFramework" version="4.0.0-preview.47" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/System.IO.FileSystem.UnitTests/packages.lock.json b/System.IO.FileSystem.UnitTests/packages.lock.json
index 1abbaf0..c5f31ca 100644
--- a/System.IO.FileSystem.UnitTests/packages.lock.json
+++ b/System.IO.FileSystem.UnitTests/packages.lock.json
@@ -4,27 +4,27 @@
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diff --git a/System.IO.FileSystem/System.IO.FileSystem.nfproj b/System.IO.FileSystem/System.IO.FileSystem.nfproj
index a1b6855..fb99aab 100644
--- a/System.IO.FileSystem/System.IO.FileSystem.nfproj
+++ b/System.IO.FileSystem/System.IO.FileSystem.nfproj
@@ -77,16 +77,16 @@
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-      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.30\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.33\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.Runtime.Events, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.Runtime.Events.2.0.0-preview.5\lib\nanoFramework.Runtime.Events.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.Runtime.Events.2.0.0-preview.7\lib\nanoFramework.Runtime.Events.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.System.Text, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.3\lib\nanoFramework.System.Text.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.6\lib\nanoFramework.System.Text.dll</HintPath>
     </Reference>
     <Reference Include="System.IO.Streams, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.IO.Streams.2.0.0-preview.6\lib\System.IO.Streams.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.IO.Streams.2.0.0-preview.8\lib\System.IO.Streams.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ProjectExtensions>
diff --git a/System.IO.FileSystem/packages.config b/System.IO.FileSystem/packages.config
index b0ff755..3dc7d47 100644
--- a/System.IO.FileSystem/packages.config
+++ b/System.IO.FileSystem/packages.config
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
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-  <package id="nanoFramework.System.Text" version="2.0.0-preview.3" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.33" targetFramework="netnano1.0" />
+  <package id="nanoFramework.Runtime.Events" version="2.0.0-preview.7" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.IO.Streams" version="2.0.0-preview.8" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Text" version="2.0.0-preview.6" targetFramework="netnano1.0" />
   <package id="Nerdbank.GitVersioning" version="3.9.50" developmentDependency="true" targetFramework="netnano1.0" />
 </packages>
\ No newline at end of file
diff --git a/System.IO.FileSystem/packages.lock.json b/System.IO.FileSystem/packages.lock.json
index 2dccd1e..94440d4 100644
--- a/System.IO.FileSystem/packages.lock.json
+++ b/System.IO.FileSystem/packages.lock.json
@@ -4,27 +4,27 @@
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diff --git a/nanoFramework.System.IO.FileSystem.nuspec b/nanoFramework.System.IO.FileSystem.nuspec
index 1007257..f5231cf 100644
--- a/nanoFramework.System.IO.FileSystem.nuspec
+++ b/nanoFramework.System.IO.FileSystem.nuspec
@@ -19,10 +19,10 @@
 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>
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-      <dependency id="nanoFramework.Runtime.Events" version="2.0.0-preview.5" />
-      <dependency id="nanoFramework.System.IO.Streams" version="2.0.0-preview.6" />
-      <dependency id="nanoFramework.System.Text" version="2.0.0-preview.3" />
+      <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.33" />
+      <dependency id="nanoFramework.Runtime.Events" version="2.0.0-preview.7" />
+      <dependency id="nanoFramework.System.IO.Streams" version="2.0.0-preview.8" />
+      <dependency id="nanoFramework.System.Text" version="2.0.0-preview.6" />
     </dependencies>
   </metadata>
   <files>