diff --git a/System.Device.Spi/System.Device.Spi.nfproj b/System.Device.Spi/System.Device.Spi.nfproj
index 9b08e228..79e5504f 100644
--- a/System.Device.Spi/System.Device.Spi.nfproj
+++ b/System.Device.Spi/System.Device.Spi.nfproj
@@ -60,13 +60,13 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <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.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="System.Device.Gpio, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Device.Gpio.2.0.0-preview.7\lib\System.Device.Gpio.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Device.Gpio.2.0.0-preview.8\lib\System.Device.Gpio.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/System.Device.Spi/packages.config b/System.Device.Spi/packages.config
index f2a617ce..ccdc2837 100644
--- a/System.Device.Spi/packages.config
+++ b/System.Device.Spi/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <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.Device.Gpio" version="2.0.0-preview.7" 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.Device.Gpio" version="2.0.0-preview.8" 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.Device.Spi/packages.lock.json b/System.Device.Spi/packages.lock.json
index 2b69b27b..4a9593f5 100644
--- a/System.Device.Spi/packages.lock.json
+++ b/System.Device.Spi/packages.lock.json
@@ -4,21 +4,21 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.33, 2.0.0-preview.33]",
-        "resolved": "2.0.0-preview.33",
-        "contentHash": "VVr+TmThdBt9zzXFzFewB5GUsNm2BE8+/3OtaCiJVg76v0Wr87A0Mi6R74hm78otfIhPJ66aPaRd+fA23dmJjQ=="
+        "requested": "[2.0.0-preview.35, 2.0.0-preview.35]",
+        "resolved": "2.0.0-preview.35",
+        "contentHash": "l3LZs5zLeYKP+21DmVykOBWQvcLWOzgOls2JU6R2mRb2cz1+SitRCaEC5bTEJHs888JdHi3xWMVe3GkRzZ/2Lg=="
       },
       "nanoFramework.Runtime.Events": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.7, 2.0.0-preview.7]",
-        "resolved": "2.0.0-preview.7",
-        "contentHash": "123GBb10MKevBBPzcXbjsADXx9yC9mATZhUVbGPAuLn6ZpfEmSGhbo9K0K8GX5zigzE9VNUUlTDa/94WyxIkaQ=="
+        "requested": "[2.0.0-preview.8, 2.0.0-preview.8]",
+        "resolved": "2.0.0-preview.8",
+        "contentHash": "+ELISV4zHeqzHrYirnx47zsAA7MPbBMWJQudbQv5almh22bTviDzFbOML3Dim8lCZZeaARnJers1gPmJ4ODT7Q=="
       },
       "nanoFramework.System.Device.Gpio": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.7, 2.0.0-preview.7]",
-        "resolved": "2.0.0-preview.7",
-        "contentHash": "2aVoAcVQGw+JujuId7eCgG56x/rWDIOcpCD/Tt4cJPC5/q2/6dwie3vBpy42rr8LDjiO/c157yHvyULFjTw+HQ=="
+        "requested": "[2.0.0-preview.8, 2.0.0-preview.8]",
+        "resolved": "2.0.0-preview.8",
+        "contentHash": "4gKKFomeb20yTCpTWTjOlMiWxbT/tg1PmHMsTx5lYi8b/y37rhXlA9bZ6QGGKBD/sI6VJAmDlcKOs7R+aV8mRQ=="
       },
       "Nerdbank.GitVersioning": {
         "type": "Direct",
diff --git a/Test/SpiHardwareUnitTests/SpiHardwareUnitTests.nfproj b/Test/SpiHardwareUnitTests/SpiHardwareUnitTests.nfproj
index d6faf516..64a7a0d6 100644
--- a/Test/SpiHardwareUnitTests/SpiHardwareUnitTests.nfproj
+++ b/Test/SpiHardwareUnitTests/SpiHardwareUnitTests.nfproj
@@ -40,10 +40,10 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <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.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.TestFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.47\lib\nanoFramework.TestFramework.dll</HintPath>
@@ -52,7 +52,7 @@
       <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.47\lib\nanoFramework.UnitTestLauncher.exe</HintPath>
     </Reference>
     <Reference Include="System.Device.Gpio, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.System.Device.Gpio.2.0.0-preview.7\lib\System.Device.Gpio.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.System.Device.Gpio.2.0.0-preview.8\lib\System.Device.Gpio.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/Test/SpiHardwareUnitTests/packages.config b/Test/SpiHardwareUnitTests/packages.config
index cd565bec..645e7bec 100644
--- a/Test/SpiHardwareUnitTests/packages.config
+++ b/Test/SpiHardwareUnitTests/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <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.Device.Gpio" version="2.0.0-preview.7" 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.Device.Gpio" 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/Test/SpiHardwareUnitTests/packages.lock.json b/Test/SpiHardwareUnitTests/packages.lock.json
index 56e02f61..424cd7c7 100644
--- a/Test/SpiHardwareUnitTests/packages.lock.json
+++ b/Test/SpiHardwareUnitTests/packages.lock.json
@@ -4,21 +4,21 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.33, 2.0.0-preview.33]",
-        "resolved": "2.0.0-preview.33",
-        "contentHash": "VVr+TmThdBt9zzXFzFewB5GUsNm2BE8+/3OtaCiJVg76v0Wr87A0Mi6R74hm78otfIhPJ66aPaRd+fA23dmJjQ=="
+        "requested": "[2.0.0-preview.35, 2.0.0-preview.35]",
+        "resolved": "2.0.0-preview.35",
+        "contentHash": "l3LZs5zLeYKP+21DmVykOBWQvcLWOzgOls2JU6R2mRb2cz1+SitRCaEC5bTEJHs888JdHi3xWMVe3GkRzZ/2Lg=="
       },
       "nanoFramework.Runtime.Events": {
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-        "resolved": "2.0.0-preview.7",
-        "contentHash": "123GBb10MKevBBPzcXbjsADXx9yC9mATZhUVbGPAuLn6ZpfEmSGhbo9K0K8GX5zigzE9VNUUlTDa/94WyxIkaQ=="
+        "requested": "[2.0.0-preview.8, 2.0.0-preview.8]",
+        "resolved": "2.0.0-preview.8",
+        "contentHash": "+ELISV4zHeqzHrYirnx47zsAA7MPbBMWJQudbQv5almh22bTviDzFbOML3Dim8lCZZeaARnJers1gPmJ4ODT7Q=="
       },
       "nanoFramework.System.Device.Gpio": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.7, 2.0.0-preview.7]",
-        "resolved": "2.0.0-preview.7",
-        "contentHash": "2aVoAcVQGw+JujuId7eCgG56x/rWDIOcpCD/Tt4cJPC5/q2/6dwie3vBpy42rr8LDjiO/c157yHvyULFjTw+HQ=="
+        "requested": "[2.0.0-preview.8, 2.0.0-preview.8]",
+        "resolved": "2.0.0-preview.8",
+        "contentHash": "4gKKFomeb20yTCpTWTjOlMiWxbT/tg1PmHMsTx5lYi8b/y37rhXlA9bZ6QGGKBD/sI6VJAmDlcKOs7R+aV8mRQ=="
       },
       "nanoFramework.TestFramework": {
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diff --git a/nanoFramework.System.Device.Spi.nuspec b/nanoFramework.System.Device.Spi.nuspec
index 458b2848..12b1d6ea 100644
--- a/nanoFramework.System.Device.Spi.nuspec
+++ b/nanoFramework.System.Device.Spi.nuspec
@@ -19,9 +19,9 @@
 This package requires a target with System.Device.Spi v$nativeVersion$ (checksum $checksum$).</description>
     <tags>nanoFramework C# csharp netmf netnf System.Device.Spi</tags>
     <dependencies>
-      <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.Device.Gpio" version="2.0.0-preview.7" />
+      <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.Device.Gpio" version="2.0.0-preview.8" />
     </dependencies>
   </metadata>
   <files>