diff --git a/System.IO.Ports/System.IO.Ports.nfproj b/System.IO.Ports/System.IO.Ports.nfproj
index 1610580..a3eb18d 100644
--- a/System.IO.Ports/System.IO.Ports.nfproj
+++ b/System.IO.Ports/System.IO.Ports.nfproj
@@ -61,16 +61,16 @@
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-      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.33\lib\netnano1.0\mscorlib.dll</HintPath>
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-      <HintPath>..\packages\nanoFramework.Runtime.Events.2.0.0-preview.7\lib\nanoFramework.Runtime.Events.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.Runtime.Events.2.0.0-preview.8\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.6\lib\nanoFramework.System.Text.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.8\lib\nanoFramework.System.Text.dll</HintPath>
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-      <HintPath>..\packages\nanoFramework.System.IO.Streams.2.0.0-preview.8\lib\System.IO.Streams.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.IO.Streams.2.0.0-preview.9\lib\System.IO.Streams.dll</HintPath>
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   <ItemGroup>
diff --git a/System.IO.Ports/packages.config b/System.IO.Ports/packages.config
index 4115251..8dc3635 100644
--- a/System.IO.Ports/packages.config
+++ b/System.IO.Ports/packages.config
@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
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-  <package id="nanoFramework.System.Text" version="2.0.0-preview.6" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.35" targetFramework="netnano1.0" />
+  <package id="nanoFramework.Runtime.Events" version="2.0.0-preview.8" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.IO.Streams" version="2.0.0-preview.9" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Text" version="2.0.0-preview.8" targetFramework="netnano1.0" />
   <package id="Nerdbank.GitVersioning" version="3.9.50" developmentDependency="true" targetFramework="netnano1.0" />
   <package id="StyleCop.MSBuild" version="6.2.0" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/System.IO.Ports/packages.lock.json b/System.IO.Ports/packages.lock.json
index 635bd77..805ef74 100644
--- a/System.IO.Ports/packages.lock.json
+++ b/System.IO.Ports/packages.lock.json
@@ -4,27 +4,27 @@
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+        "requested": "[2.0.0-preview.35, 2.0.0-preview.35]",
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+        "requested": "[2.0.0-preview.8, 2.0.0-preview.8]",
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+        "requested": "[2.0.0-preview.9, 2.0.0-preview.9]",
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diff --git a/Tests/UnitTestsSerialPort/UnitTestsSerialPort.nfproj b/Tests/UnitTestsSerialPort/UnitTestsSerialPort.nfproj
index c86988b..b90f2e4 100644
--- a/Tests/UnitTestsSerialPort/UnitTestsSerialPort.nfproj
+++ b/Tests/UnitTestsSerialPort/UnitTestsSerialPort.nfproj
@@ -41,16 +41,16 @@
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-      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.33\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.35\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.Hardware.Esp32, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.Hardware.Esp32.2.0.0-preview.5\lib\nanoFramework.Hardware.Esp32.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.Hardware.Esp32.2.0.0-preview.6\lib\nanoFramework.Hardware.Esp32.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.7\lib\nanoFramework.Runtime.Events.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.Runtime.Events.2.0.0-preview.8\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.6\lib\nanoFramework.System.Text.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.System.Text.2.0.0-preview.8\lib\nanoFramework.System.Text.dll</HintPath>
     </Reference>
     <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>
@@ -59,7 +59,7 @@
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-      <HintPath>..\..\packages\nanoFramework.System.IO.Streams.2.0.0-preview.8\lib\System.IO.Streams.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.System.IO.Streams.2.0.0-preview.9\lib\System.IO.Streams.dll</HintPath>
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   </ItemGroup>
   <ItemGroup>
diff --git a/Tests/UnitTestsSerialPort/packages.config b/Tests/UnitTestsSerialPort/packages.config
index 253652a..77cf855 100644
--- a/Tests/UnitTestsSerialPort/packages.config
+++ b/Tests/UnitTestsSerialPort/packages.config
@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
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-  <package id="nanoFramework.Hardware.Esp32" version="2.0.0-preview.5" targetFramework="netnano1.0" />
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-  <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.CoreLibrary" version="2.0.0-preview.35" targetFramework="netnano1.0" />
+  <package id="nanoFramework.Hardware.Esp32" version="2.0.0-preview.6" targetFramework="netnano1.0" />
+  <package id="nanoFramework.Runtime.Events" version="2.0.0-preview.8" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.IO.Streams" version="2.0.0-preview.9" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Text" version="2.0.0-preview.8" 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/Tests/UnitTestsSerialPort/packages.lock.json b/Tests/UnitTestsSerialPort/packages.lock.json
index 0304916..12b4672 100644
--- a/Tests/UnitTestsSerialPort/packages.lock.json
+++ b/Tests/UnitTestsSerialPort/packages.lock.json
@@ -4,33 +4,33 @@
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+        "requested": "[2.0.0-preview.35, 2.0.0-preview.35]",
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diff --git a/nanoFramework.System.IO.Ports.nuspec b/nanoFramework.System.IO.Ports.nuspec
index 6786e9c..054657a 100644
--- a/nanoFramework.System.IO.Ports.nuspec
+++ b/nanoFramework.System.IO.Ports.nuspec
@@ -19,9 +19,9 @@
 This package requires a target with System.IO.Ports v$nativeVersion$ (checksum $checksum$).</description>
     <tags>nanoFramework C# csharp netmf netnf System.IO.Ports</tags>
     <dependencies>
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-      <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.CoreLibrary" version="2.0.0-preview.35" />
+      <dependency id="nanoFramework.Runtime.Events" version="2.0.0-preview.8" />
+      <dependency id="nanoFramework.System.IO.Streams" version="2.0.0-preview.9" />
     </dependencies>
   </metadata>
   <files>