diff --git a/Tests/NFUnitTestEncoding/NFUnitTestEncoding.nfproj b/Tests/NFUnitTestEncoding/NFUnitTestEncoding.nfproj
index 90452a2..05066e5 100644
--- a/Tests/NFUnitTestEncoding/NFUnitTestEncoding.nfproj
+++ b/Tests/NFUnitTestEncoding/NFUnitTestEncoding.nfproj
@@ -35,10 +35,10 @@
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-      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.58\lib\netnano1.0\nanoFramework.TestFramework.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.61\lib\netnano1.0\nanoFramework.TestFramework.dll</HintPath>
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-      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.58\lib\netnano1.0\nanoFramework.UnitTestLauncher.exe</HintPath>
+      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.61\lib\netnano1.0\nanoFramework.UnitTestLauncher.exe</HintPath>
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   <ItemGroup>
diff --git a/Tests/NFUnitTestEncoding/packages.config b/Tests/NFUnitTestEncoding/packages.config
index 69c3999..f634221 100644
--- a/Tests/NFUnitTestEncoding/packages.config
+++ b/Tests/NFUnitTestEncoding/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" targetFramework="netnano1.0" />
-  <package id="nanoFramework.TestFramework" version="4.0.0-preview.58" targetFramework="netnano1.0" developmentDependency="true" />
+  <package id="nanoFramework.TestFramework" version="4.0.0-preview.61" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/Tests/NFUnitTestEncoding/packages.lock.json b/Tests/NFUnitTestEncoding/packages.lock.json
index 3e79e5d..fdb05c0 100644
--- a/Tests/NFUnitTestEncoding/packages.lock.json
+++ b/Tests/NFUnitTestEncoding/packages.lock.json
@@ -10,9 +10,9 @@
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+        "requested": "[4.0.0-preview.61, 4.0.0-preview.61]",
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diff --git a/Tests/NFUnitTestStringBuilder/NFUnitTestStringBuilder.nfproj b/Tests/NFUnitTestStringBuilder/NFUnitTestStringBuilder.nfproj
index c4a75e2..5526b6c 100644
--- a/Tests/NFUnitTestStringBuilder/NFUnitTestStringBuilder.nfproj
+++ b/Tests/NFUnitTestStringBuilder/NFUnitTestStringBuilder.nfproj
@@ -40,10 +40,10 @@
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-      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.58\lib\netnano1.0\nanoFramework.TestFramework.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.61\lib\netnano1.0\nanoFramework.TestFramework.dll</HintPath>
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     <Reference Include="nanoFramework.UnitTestLauncher, Version=0.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.58\lib\netnano1.0\nanoFramework.UnitTestLauncher.exe</HintPath>
+      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.61\lib\netnano1.0\nanoFramework.UnitTestLauncher.exe</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/Tests/NFUnitTestStringBuilder/packages.config b/Tests/NFUnitTestStringBuilder/packages.config
index 69c3999..f634221 100644
--- a/Tests/NFUnitTestStringBuilder/packages.config
+++ b/Tests/NFUnitTestStringBuilder/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" targetFramework="netnano1.0" />
-  <package id="nanoFramework.TestFramework" version="4.0.0-preview.58" targetFramework="netnano1.0" developmentDependency="true" />
+  <package id="nanoFramework.TestFramework" version="4.0.0-preview.61" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/Tests/NFUnitTestStringBuilder/packages.lock.json b/Tests/NFUnitTestStringBuilder/packages.lock.json
index 3e79e5d..fdb05c0 100644
--- a/Tests/NFUnitTestStringBuilder/packages.lock.json
+++ b/Tests/NFUnitTestStringBuilder/packages.lock.json
@@ -10,9 +10,9 @@
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-        "resolved": "4.0.0-preview.58",
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+        "requested": "[4.0.0-preview.61, 4.0.0-preview.61]",
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diff --git a/nanoFramework.System.Text.Benchmark/nanoFramework.System.Text.Benchmark.nfproj b/nanoFramework.System.Text.Benchmark/nanoFramework.System.Text.Benchmark.nfproj
index 41f6107..058ca72 100644
--- a/nanoFramework.System.Text.Benchmark/nanoFramework.System.Text.Benchmark.nfproj
+++ b/nanoFramework.System.Text.Benchmark/nanoFramework.System.Text.Benchmark.nfproj
@@ -33,7 +33,7 @@
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     </Reference>
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-      <HintPath>..\packages\nanoFramework.Logging.2.0.0-preview.35\lib\netnano1.0\nanoFramework.Logging.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.Logging.2.0.0-preview.37\lib\netnano1.0\nanoFramework.Logging.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.Runtime.Native, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
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diff --git a/nanoFramework.System.Text.Benchmark/packages.config b/nanoFramework.System.Text.Benchmark/packages.config
index b522e3a..624cdc9 100644
--- a/nanoFramework.System.Text.Benchmark/packages.config
+++ b/nanoFramework.System.Text.Benchmark/packages.config
@@ -2,7 +2,7 @@
 <packages>
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   <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" targetFramework="netnano1.0" />
-  <package id="nanoFramework.Logging" version="2.0.0-preview.35" targetFramework="netnano1.0" />
+  <package id="nanoFramework.Logging" version="2.0.0-preview.37" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Native" version="2.0.0-preview.25" targetFramework="netnano1.0" />
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diff --git a/nanoFramework.System.Text.Benchmark/packages.lock.json b/nanoFramework.System.Text.Benchmark/packages.lock.json
index 6235d8a..05a3282 100644
--- a/nanoFramework.System.Text.Benchmark/packages.lock.json
+++ b/nanoFramework.System.Text.Benchmark/packages.lock.json
@@ -16,9 +16,9 @@
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