diff --git a/Tests/System.Security.CryptographyTests/System.Security.CryptographyTests.nfproj b/Tests/System.Security.CryptographyTests/System.Security.CryptographyTests.nfproj
index f4efc37..9e47a06 100644
--- a/Tests/System.Security.CryptographyTests/System.Security.CryptographyTests.nfproj
+++ b/Tests/System.Security.CryptographyTests/System.Security.CryptographyTests.nfproj
@@ -37,11 +37,11 @@
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       <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.43\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
-    <Reference Include="nanoFramework.TestFramework">
-      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.47\lib\nanoFramework.TestFramework.dll</HintPath>
+    <Reference Include="nanoFramework.TestFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.49\lib\nanoFramework.TestFramework.dll</HintPath>
     </Reference>
-    <Reference Include="nanoFramework.UnitTestLauncher">
-      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.47\lib\nanoFramework.UnitTestLauncher.exe</HintPath>
+    <Reference Include="nanoFramework.UnitTestLauncher, Version=0.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.49\lib\nanoFramework.UnitTestLauncher.exe</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/Tests/System.Security.CryptographyTests/packages.config b/Tests/System.Security.CryptographyTests/packages.config
index 8691514..b26279b 100644
--- a/Tests/System.Security.CryptographyTests/packages.config
+++ b/Tests/System.Security.CryptographyTests/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.43" targetFramework="netnano1.0" />
-  <package id="nanoFramework.TestFramework" version="4.0.0-preview.47" targetFramework="netnano1.0" developmentDependency="true" />
+  <package id="nanoFramework.TestFramework" version="4.0.0-preview.49" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/Tests/System.Security.CryptographyTests/packages.lock.json b/Tests/System.Security.CryptographyTests/packages.lock.json
index 5ee00c5..2dd3f26 100644
--- a/Tests/System.Security.CryptographyTests/packages.lock.json
+++ b/Tests/System.Security.CryptographyTests/packages.lock.json
@@ -10,9 +10,9 @@
       },
       "nanoFramework.TestFramework": {
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-        "resolved": "4.0.0-preview.47",
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+        "requested": "[4.0.0-preview.49, 4.0.0-preview.49]",
+        "resolved": "4.0.0-preview.49",
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