diff --git a/System.Device.Spi/System.Device.Spi.nfproj b/System.Device.Spi/System.Device.Spi.nfproj
index 29e06947a..5f04ce899 100644
--- a/System.Device.Spi/System.Device.Spi.nfproj
+++ b/System.Device.Spi/System.Device.Spi.nfproj
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="Current" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <NanoFrameworkProjectSystemPath>$(MSBuildToolsPath)..\..\..\nanoFramework\v1.0\</NanoFrameworkProjectSystemPath>
@@ -65,14 +65,12 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="nanoFramework.Runtime.Events, Version=1.9.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.Runtime.Events.1.9.0-preview.16\lib\nanoFramework.Runtime.Events.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.Runtime.Events.1.9.0-preview.22\lib\nanoFramework.Runtime.Events.dll</HintPath>
       <Private>True</Private>
-      <SpecificVersion>True</SpecificVersion>
     </Reference>
     <Reference Include="System.Device.Gpio, Version=1.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Device.Gpio.1.0.0-preview.31\lib\System.Device.Gpio.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Device.Gpio.1.0.0-preview.37\lib\System.Device.Gpio.dll</HintPath>
       <Private>True</Private>
-      <SpecificVersion>True</SpecificVersion>
     </Reference>
   </ItemGroup>
   <Import Project="$(NanoFrameworkProjectSystemPath)NFProjectSystem.CSharp.targets" Condition="Exists('$(NanoFrameworkProjectSystemPath)NFProjectSystem.CSharp.targets')" />
diff --git a/System.Device.Spi/packages.config b/System.Device.Spi/packages.config
index 21f3cebea..ac1d59de4 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="1.10.3-preview.20" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.Runtime.Events" version="1.9.0-preview.16" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.System.Device.Gpio" version="1.0.0-preview.31" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.Runtime.Events" version="1.9.0-preview.22" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.System.Device.Gpio" version="1.0.0-preview.37" targetFramework="netnanoframework10" />
   <package id="Nerdbank.GitVersioning" version="3.4.194" developmentDependency="true" targetFramework="netnanoframework10" />
 </packages>
\ No newline at end of file
diff --git a/Test/SpiHardwareUnitTests/SpiHardwareUnitTests.nfproj b/Test/SpiHardwareUnitTests/SpiHardwareUnitTests.nfproj
index 530848c19..78416f4d5 100644
--- a/Test/SpiHardwareUnitTests/SpiHardwareUnitTests.nfproj
+++ b/Test/SpiHardwareUnitTests/SpiHardwareUnitTests.nfproj
@@ -36,9 +36,8 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="nanoFramework.Runtime.Events, Version=1.9.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.Runtime.Events.1.9.0-preview.16\lib\nanoFramework.Runtime.Events.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.Runtime.Events.1.9.0-preview.22\lib\nanoFramework.Runtime.Events.dll</HintPath>
       <Private>True</Private>
-      <SpecificVersion>True</SpecificVersion>
     </Reference>
     <Reference Include="nanoFramework.TestFramework, Version=1.0.110.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\..\packages\nanoFramework.TestFramework.1.0.110\lib\nanoFramework.TestFramework.dll</HintPath>
@@ -49,9 +48,8 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="System.Device.Gpio, Version=1.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.System.Device.Gpio.1.0.0-preview.31\lib\System.Device.Gpio.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.System.Device.Gpio.1.0.0-preview.37\lib\System.Device.Gpio.dll</HintPath>
       <Private>True</Private>
-      <SpecificVersion>True</SpecificVersion>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/Test/SpiHardwareUnitTests/packages.config b/Test/SpiHardwareUnitTests/packages.config
index f271e45c8..ecbcaf4b3 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="1.10.3-preview.20" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.Runtime.Events" version="1.9.0-preview.16" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.System.Device.Gpio" version="1.0.0-preview.31" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.Runtime.Events" version="1.9.0-preview.22" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.System.Device.Gpio" version="1.0.0-preview.37" targetFramework="netnanoframework10" />
   <package id="nanoFramework.TestFramework" version="1.0.110" targetFramework="netnanoframework10" developmentDependency="true" />
 </packages>
\ No newline at end of file