diff --git a/System.Device.I2c/Properties/AssemblyInfo.cs b/System.Device.I2c/Properties/AssemblyInfo.cs
index 7b1f17b..56bad93 100644
--- a/System.Device.I2c/Properties/AssemblyInfo.cs
+++ b/System.Device.I2c/Properties/AssemblyInfo.cs
@@ -15,11 +15,6 @@
 [assembly: AssemblyProduct("nanoFramework System.Device.I2c")]
 [assembly: AssemblyCopyright("Copyright (c) .NET Foundation and Contributors")]
 
-////////////////////////////////////////////////////////////////
-// update this whenever the native assembly signature changes //
-[assembly: AssemblyNativeVersion("100.2.0.1")]
-////////////////////////////////////////////////////////////////
-
 // Setting ComVisible to false makes the types in this assembly not visible 
 // to COM components.  If you need to access a type in this assembly from 
 // COM, set the ComVisible attribute to true on that type.
diff --git a/System.Device.I2c/System.Device.I2c.nfproj b/System.Device.I2c/System.Device.I2c.nfproj
index 170dd40..390bcdb 100644
--- a/System.Device.I2c/System.Device.I2c.nfproj
+++ b/System.Device.I2c/System.Device.I2c.nfproj
@@ -55,7 +55,7 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.52\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.63\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
   </ItemGroup>
   <Import Project="$(NanoFrameworkProjectSystemPath)NFProjectSystem.CSharp.targets" Condition="Exists('$(NanoFrameworkProjectSystemPath)NFProjectSystem.CSharp.targets')" />
diff --git a/System.Device.I2c/packages.config b/System.Device.I2c/packages.config
index 4b30da3..caf6fa6 100644
--- a/System.Device.I2c/packages.config
+++ b/System.Device.I2c/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.63" targetFramework="netnano1.0" />
   <package id="Nerdbank.GitVersioning" version="3.10.94" developmentDependency="true" targetFramework="netnano1.0" />
 </packages>
\ No newline at end of file
diff --git a/System.Device.I2c/packages.lock.json b/System.Device.I2c/packages.lock.json
index 1dc9a3c..0053969 100644
--- a/System.Device.I2c/packages.lock.json
+++ b/System.Device.I2c/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.52, 2.0.0-preview.52]",
-        "resolved": "2.0.0-preview.52",
-        "contentHash": "cV9JEhoc2OV/UL602i5xmEwQpnn/gzVMlDTAIAMRxCNwBKNYLO9U50OkJykpGnO2SULTsmvFqQWEGZiuANBZHw=="
+        "requested": "[2.0.0-preview.63, 2.0.0-preview.63]",
+        "resolved": "2.0.0-preview.63",
+        "contentHash": "M2qEbjY8Uh5jpgrqDD7vJf2YXk3CmGbTHkb/t6w4F/aNyetOYk0LyekdwUSF0kZ+gTNMH/y6CTHBbJfgtMbIeA=="
       },
       "Nerdbank.GitVersioning": {
         "type": "Direct",
diff --git a/nanoFramework.System.Device.I2c.nuspec b/nanoFramework.System.Device.I2c.nuspec
index 5d3d08b..a1f8485 100644
--- a/nanoFramework.System.Device.I2c.nuspec
+++ b/nanoFramework.System.Device.I2c.nuspec
@@ -16,11 +16,11 @@
     <repository type="git" url="https://github.com/nanoframework/System.Device.I2c" commit="$commit$" />
     <copyright>Copyright (c) .NET Foundation and Contributors</copyright>
     <description>This package includes the System.Device.I2c assembly for nanoFramework C# projects.
-This package requires a target with System.Device.I2c v$nativeVersion$ (checksum $checksum$).</description>
-    <tags>nanoFramework C# csharp netmf netnf I2c</tags>
+This package requires a target with System.Device.I2c native contract hash $nativeContractHash$.</description>
+    <tags>nanoFramework C# csharp netmf netnf I2c nfnc-$nativeContractHash$</tags>
     <dependencies>
       <group targetFramework=".NETnanoFramework1.0">
-        <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" />
+        <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.63" />
       </group>
     </dependencies>
   </metadata>