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index 3e5e825..61f7071 100644
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diff --git a/Tests/MathUnitTests/packages.config b/Tests/MathUnitTests/packages.config
index 1f1664e..8013f6f 100644
--- a/Tests/MathUnitTests/packages.config
+++ b/Tests/MathUnitTests/packages.config
@@ -1,5 +1,5 @@
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-  <package id="nanoFramework.TestFramework" version="4.0.0-preview.45" targetFramework="netnano1.0" developmentDependency="true" />
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diff --git a/Tests/MathUnitTests/packages.lock.json b/Tests/MathUnitTests/packages.lock.json
index 244e70c..9d78d27 100644
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@@ -10,9 +10,9 @@
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index 40cc81c..fda7c8e 100644
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+    <Reference Include="nanoFramework.Runtime.Native, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
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+    <Reference Include="nanoFramework.System.Collections, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
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diff --git a/nanoFramework.System.Math.Benchmark/packages.config b/nanoFramework.System.Math.Benchmark/packages.config
index bea2169..7c9943a 100644
--- a/nanoFramework.System.Math.Benchmark/packages.config
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-  <package id="nanoFramework.System.Text" version="2.0.0-preview.1" targetFramework="netnano1.0" />
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 </packages>
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diff --git a/nanoFramework.System.Math.Benchmark/packages.lock.json b/nanoFramework.System.Math.Benchmark/packages.lock.json
index c44ad3d..52a745b 100644
--- a/nanoFramework.System.Math.Benchmark/packages.lock.json
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@@ -22,15 +22,15 @@
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