diff --git a/Tests/MathUnitTests/MathUnitTests.nfproj b/Tests/MathUnitTests/MathUnitTests.nfproj
index 1d21276..01c9bbc 100644
--- a/Tests/MathUnitTests/MathUnitTests.nfproj
+++ b/Tests/MathUnitTests/MathUnitTests.nfproj
@@ -36,7 +36,7 @@
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-      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.35\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.39\lib\netnano1.0\mscorlib.dll</HintPath>
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     <Reference Include="nanoFramework.TestFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
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diff --git a/Tests/MathUnitTests/packages.config b/Tests/MathUnitTests/packages.config
index 329f2b9..35abca0 100644
--- a/Tests/MathUnitTests/packages.config
+++ b/Tests/MathUnitTests/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.35" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.39" 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/MathUnitTests/packages.lock.json b/Tests/MathUnitTests/packages.lock.json
index 65bf96d..0fc2712 100644
--- a/Tests/MathUnitTests/packages.lock.json
+++ b/Tests/MathUnitTests/packages.lock.json
@@ -4,9 +4,9 @@
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diff --git a/nanoFramework.System.Math.Benchmark/nanoFramework.System.Math.Benchmark.nfproj b/nanoFramework.System.Math.Benchmark/nanoFramework.System.Math.Benchmark.nfproj
index 1bf64d8..a05e5c4 100644
--- a/nanoFramework.System.Math.Benchmark/nanoFramework.System.Math.Benchmark.nfproj
+++ b/nanoFramework.System.Math.Benchmark/nanoFramework.System.Math.Benchmark.nfproj
@@ -33,25 +33,25 @@
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+      <HintPath>..\packages\nanoFramework.Logging.2.0.0-preview.5\lib\netnano1.0\nanoFramework.Logging.dll</HintPath>
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-      <HintPath>..\packages\nanoFramework.Runtime.Native.2.0.0-preview.20\lib\nanoFramework.Runtime.Native.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.Runtime.Native.2.0.0-preview.22\lib\netnano1.0\nanoFramework.Runtime.Native.dll</HintPath>
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-      <HintPath>..\packages\nanoFramework.System.Collections.2.0.0-preview.8\lib\nanoFramework.System.Collections.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Collections.2.0.0-preview.11\lib\netnano1.0\nanoFramework.System.Collections.dll</HintPath>
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-      <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.8\lib\nanoFramework.System.Text.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.13\lib\netnano1.0\nanoFramework.System.Text.dll</HintPath>
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diff --git a/nanoFramework.System.Math.Benchmark/packages.config b/nanoFramework.System.Math.Benchmark/packages.config
index e321fd6..52e6a1a 100644
--- a/nanoFramework.System.Math.Benchmark/packages.config
+++ b/nanoFramework.System.Math.Benchmark/packages.config
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
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-  <package id="nanoFramework.System.Text" version="2.0.0-preview.8" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.39" targetFramework="netnano1.0" />
+  <package id="nanoFramework.Logging" version="2.0.0-preview.5" targetFramework="netnano1.0" />
+  <package id="nanoFramework.Runtime.Native" version="2.0.0-preview.22" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Collections" version="2.0.0-preview.11" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Diagnostics.Stopwatch" version="2.0.0-preview.34" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Text" version="2.0.0-preview.13" targetFramework="netnano1.0" />
 </packages>
\ No newline at end of file
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index d40266f..8daa750 100644
--- a/nanoFramework.System.Math.Benchmark/packages.lock.json
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@@ -10,39 +10,39 @@
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diff --git a/nanoFramework.System.Math.nuspec b/nanoFramework.System.Math.nuspec
index 26d42f9..139638f 100644
--- a/nanoFramework.System.Math.nuspec
+++ b/nanoFramework.System.Math.nuspec
@@ -20,7 +20,7 @@ This package requires a target with System.Math v$nativeVersion$ (checksum $chec
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     <dependencies>
       <group targetFramework=".NETnanoFramework1.0">
-        <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.35" />
+        <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.39" />
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diff --git a/nanoFramework.System.Math/nanoFramework.System.Math.nfproj b/nanoFramework.System.Math/nanoFramework.System.Math.nfproj
index 64e6dda..8f574cc 100644
--- a/nanoFramework.System.Math/nanoFramework.System.Math.nfproj
+++ b/nanoFramework.System.Math/nanoFramework.System.Math.nfproj
@@ -55,7 +55,7 @@
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diff --git a/nanoFramework.System.Math/packages.config b/nanoFramework.System.Math/packages.config
index c1985bc..5336b0f 100644
--- a/nanoFramework.System.Math/packages.config
+++ b/nanoFramework.System.Math/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
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\ No newline at end of file
diff --git a/nanoFramework.System.Math/packages.lock.json b/nanoFramework.System.Math/packages.lock.json
index f85cb78..e04980a 100644
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