diff --git a/System.Device.Pwm/System.Device.Pwm.nfproj b/System.Device.Pwm/System.Device.Pwm.nfproj
index 1fcb23f..d2c27f3 100644
--- a/System.Device.Pwm/System.Device.Pwm.nfproj
+++ b/System.Device.Pwm/System.Device.Pwm.nfproj
@@ -54,8 +54,8 @@
     <AdditionalFiles Include="..\.sonarlint\nanoframework_system.device.pwm\CSharp\SonarLint.xml" Link="SonarLint.xml" />
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="mscorlib">
-      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.29\lib\netnano1.0\mscorlib.dll</HintPath>
+    <Reference Include="mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.30\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.Pwm/packages.config b/System.Device.Pwm/packages.config
index 99e498c..b07d6d6 100644
--- a/System.Device.Pwm/packages.config
+++ b/System.Device.Pwm/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.29" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.30" 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.Pwm/packages.lock.json b/System.Device.Pwm/packages.lock.json
index 0e819fb..85dabf3 100644
--- a/System.Device.Pwm/packages.lock.json
+++ b/System.Device.Pwm/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.29, 2.0.0-preview.29]",
-        "resolved": "2.0.0-preview.29",
-        "contentHash": "7NDp9Sda9FTFBDN//X34r23rJBHUkCvyGvrFh9s5B8H2nMoet4J0OlEOiZRUsEPBXlsNpZFVp+Cd6OSjnLSg5A=="
+        "requested": "[2.0.0-preview.30, 2.0.0-preview.30]",
+        "resolved": "2.0.0-preview.30",
+        "contentHash": "Fz+5L0yOpe0ZoBpVRqH8G8Dr18OoXVE6sKertR/bPuWyOJiO42enlarudfv91/gpJXFkQGNCCdXpHWpoc77jyg=="
       },
       "Nerdbank.GitVersioning": {
         "type": "Direct",
diff --git a/nanoFramework.System.Device.Pwm.nuspec b/nanoFramework.System.Device.Pwm.nuspec
index 26d6391..39c2180 100644
--- a/nanoFramework.System.Device.Pwm.nuspec
+++ b/nanoFramework.System.Device.Pwm.nuspec
@@ -19,7 +19,7 @@
 This package requires a target with nanoFramework.System.Device.Pwm v$nativeVersion$ (checksum $checksum$).</description>
     <tags>nanoFramework C# csharp netmf netnf nanoFramework pwm</tags>
     <dependencies>
-      <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.29" />
+      <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.30" />
     </dependencies>
   </metadata>
   <files>