diff --git a/Tests/HttpUnitTests/HttpUnitTests.nfproj b/Tests/HttpUnitTests/HttpUnitTests.nfproj
index d31ca22..f4e72be 100644
--- a/Tests/HttpUnitTests/HttpUnitTests.nfproj
+++ b/Tests/HttpUnitTests/HttpUnitTests.nfproj
@@ -51,10 +51,10 @@
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     </Reference>
     <Reference Include="nanoFramework.TestFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.63\lib\netnano1.0\nanoFramework.TestFramework.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.64\lib\netnano1.0\nanoFramework.TestFramework.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.UnitTestLauncher, Version=0.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.63\lib\netnano1.0\nanoFramework.UnitTestLauncher.exe</HintPath>
+      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.64\lib\netnano1.0\nanoFramework.UnitTestLauncher.exe</HintPath>
     </Reference>
     <Reference Include="System.IO.Streams, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\..\packages\nanoFramework.System.IO.Streams.2.0.0-preview.22\lib\netnano1.0\System.IO.Streams.dll</HintPath>
diff --git a/Tests/HttpUnitTests/packages.config b/Tests/HttpUnitTests/packages.config
index 26680fd..f1d5fea 100644
--- a/Tests/HttpUnitTests/packages.config
+++ b/Tests/HttpUnitTests/packages.config
@@ -3,5 +3,5 @@
   <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.IO.Streams" version="2.0.0-preview.22" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Text" version="2.0.0-preview.23" targetFramework="netnano1.0" />
-  <package id="nanoFramework.TestFramework" version="4.0.0-preview.63" targetFramework="netnano1.0" developmentDependency="true" />
+  <package id="nanoFramework.TestFramework" version="4.0.0-preview.64" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/Tests/HttpUnitTests/packages.lock.json b/Tests/HttpUnitTests/packages.lock.json
index db111af..0ea0424 100644
--- a/Tests/HttpUnitTests/packages.lock.json
+++ b/Tests/HttpUnitTests/packages.lock.json
@@ -22,9 +22,9 @@
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       "nanoFramework.TestFramework": {
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+        "requested": "[4.0.0-preview.64, 4.0.0-preview.64]",
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