diff --git a/UnitTests/MemoryStreamUnitTests/MemoryStreamUnitTests.nfproj b/UnitTests/MemoryStreamUnitTests/MemoryStreamUnitTests.nfproj
index f8a763e..eb78428 100644
--- a/UnitTests/MemoryStreamUnitTests/MemoryStreamUnitTests.nfproj
+++ b/UnitTests/MemoryStreamUnitTests/MemoryStreamUnitTests.nfproj
@@ -53,10 +53,10 @@
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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.52\lib\nanoFramework.TestFramework.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.54\lib\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.52\lib\nanoFramework.UnitTestLauncher.exe</HintPath>
+      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.54\lib\nanoFramework.UnitTestLauncher.exe</HintPath>
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   </ItemGroup>
   <ItemGroup>
diff --git a/UnitTests/MemoryStreamUnitTests/packages.config b/UnitTests/MemoryStreamUnitTests/packages.config
index d6501bb..4f66872 100644
--- a/UnitTests/MemoryStreamUnitTests/packages.config
+++ b/UnitTests/MemoryStreamUnitTests/packages.config
@@ -2,5 +2,5 @@
 <packages>
   <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.49" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Text" version="2.0.0-preview.18" targetFramework="netnano1.0" />
-  <package id="nanoFramework.TestFramework" version="4.0.0-preview.52" targetFramework="netnano1.0" developmentDependency="true" />
+  <package id="nanoFramework.TestFramework" version="4.0.0-preview.54" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/UnitTests/MemoryStreamUnitTests/packages.lock.json b/UnitTests/MemoryStreamUnitTests/packages.lock.json
index 2f3091e..5f89c26 100644
--- a/UnitTests/MemoryStreamUnitTests/packages.lock.json
+++ b/UnitTests/MemoryStreamUnitTests/packages.lock.json
@@ -16,9 +16,9 @@
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       "nanoFramework.TestFramework": {
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-        "resolved": "4.0.0-preview.52",
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+        "requested": "[4.0.0-preview.54, 4.0.0-preview.54]",
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diff --git a/UnitTests/StreamReaderWriterUnitTests/StreamReaderWriterUnitTests.nfproj b/UnitTests/StreamReaderWriterUnitTests/StreamReaderWriterUnitTests.nfproj
index d5a2a22..5f1baf3 100644
--- a/UnitTests/StreamReaderWriterUnitTests/StreamReaderWriterUnitTests.nfproj
+++ b/UnitTests/StreamReaderWriterUnitTests/StreamReaderWriterUnitTests.nfproj
@@ -38,10 +38,10 @@
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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.52\lib\nanoFramework.TestFramework.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.54\lib\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.52\lib\nanoFramework.UnitTestLauncher.exe</HintPath>
+      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.54\lib\nanoFramework.UnitTestLauncher.exe</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/UnitTests/StreamReaderWriterUnitTests/packages.config b/UnitTests/StreamReaderWriterUnitTests/packages.config
index d6501bb..4f66872 100644
--- a/UnitTests/StreamReaderWriterUnitTests/packages.config
+++ b/UnitTests/StreamReaderWriterUnitTests/packages.config
@@ -2,5 +2,5 @@
 <packages>
   <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.49" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Text" version="2.0.0-preview.18" targetFramework="netnano1.0" />
-  <package id="nanoFramework.TestFramework" version="4.0.0-preview.52" targetFramework="netnano1.0" developmentDependency="true" />
+  <package id="nanoFramework.TestFramework" version="4.0.0-preview.54" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/UnitTests/StreamReaderWriterUnitTests/packages.lock.json b/UnitTests/StreamReaderWriterUnitTests/packages.lock.json
index 2f3091e..5f89c26 100644
--- a/UnitTests/StreamReaderWriterUnitTests/packages.lock.json
+++ b/UnitTests/StreamReaderWriterUnitTests/packages.lock.json
@@ -16,9 +16,9 @@
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-        "resolved": "4.0.0-preview.52",
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+        "requested": "[4.0.0-preview.54, 4.0.0-preview.54]",
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