diff --git a/nanoFramework.Graphics.Core.UnitTests/nanoFramework.Graphics.Core.UnitTests.nfproj b/nanoFramework.Graphics.Core.UnitTests/nanoFramework.Graphics.Core.UnitTests.nfproj
index 17720d7..9fa5e86 100644
--- a/nanoFramework.Graphics.Core.UnitTests/nanoFramework.Graphics.Core.UnitTests.nfproj
+++ b/nanoFramework.Graphics.Core.UnitTests/nanoFramework.Graphics.Core.UnitTests.nfproj
@@ -36,10 +36,10 @@
       <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.43\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
     <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>
+      <HintPath>..\packages\nanoFramework.TestFramework.4.0.0-preview.52\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.49\lib\nanoFramework.UnitTestLauncher.exe</HintPath>
+      <HintPath>..\packages\nanoFramework.TestFramework.4.0.0-preview.52\lib\nanoFramework.UnitTestLauncher.exe</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/nanoFramework.Graphics.Core.UnitTests/packages.config b/nanoFramework.Graphics.Core.UnitTests/packages.config
index b26279b..6c5d277 100644
--- a/nanoFramework.Graphics.Core.UnitTests/packages.config
+++ b/nanoFramework.Graphics.Core.UnitTests/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.49" targetFramework="netnano1.0" developmentDependency="true" />
+  <package id="nanoFramework.TestFramework" version="4.0.0-preview.52" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/nanoFramework.Graphics.Core.UnitTests/packages.lock.json b/nanoFramework.Graphics.Core.UnitTests/packages.lock.json
index 2dd3f26..9308a68 100644
--- a/nanoFramework.Graphics.Core.UnitTests/packages.lock.json
+++ b/nanoFramework.Graphics.Core.UnitTests/packages.lock.json
@@ -10,9 +10,9 @@
       },
       "nanoFramework.TestFramework": {
         "type": "Direct",
-        "requested": "[4.0.0-preview.49, 4.0.0-preview.49]",
-        "resolved": "4.0.0-preview.49",
-        "contentHash": "9YYWJIV8o1LPHVmXiQWbfmIKIu/9Ioxw6qWGShpn7K9zX9hgEs7N3NmY+81Ku7rGssUSyKd3RCL2HvXFosRX2g=="
+        "requested": "[4.0.0-preview.52, 4.0.0-preview.52]",
+        "resolved": "4.0.0-preview.52",
+        "contentHash": "NnPJcRP41jr5pC8O5Zc29ozBAIm0PEXcj/vc/IjzWzsdNq1cpx8aRAoF3TW9cFEHdLu223tahoZyjFmALRSEoA=="
       }
     }
   }
diff --git a/nanoFramework.Graphics.nuspec b/nanoFramework.Graphics.nuspec
index d2828bb..be8ced8 100644
--- a/nanoFramework.Graphics.nuspec
+++ b/nanoFramework.Graphics.nuspec
@@ -24,7 +24,7 @@ This package requires a target with System.Graphics v$nativeVersion$ (checksum $
         <dependency id="nanoFramework.ResourceManager" version="2.0.0-preview.8" />
         <dependency id="nanoFramework.Runtime.Events" version="2.0.0-preview.11" />
         <dependency id="nanoFramework.Runtime.Native" version="2.0.0-preview.23" />
-        <dependency id="nanoFramework.System.Collections" version="2.0.0-preview.13" />
+        <dependency id="nanoFramework.System.Collections" version="2.0.0-preview.14" />
       </group>
     </dependencies>
   </metadata>
diff --git a/nanoFramework.Graphics/nanoFramework.Graphics.nfproj b/nanoFramework.Graphics/nanoFramework.Graphics.nfproj
index 63e7ada..5d3b8a9 100644
--- a/nanoFramework.Graphics/nanoFramework.Graphics.nfproj
+++ b/nanoFramework.Graphics/nanoFramework.Graphics.nfproj
@@ -289,7 +289,7 @@
       <HintPath>..\packages\nanoFramework.Runtime.Native.2.0.0-preview.23\lib\netnano1.0\nanoFramework.Runtime.Native.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.System.Collections, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Collections.2.0.0-preview.13\lib\netnano1.0\nanoFramework.System.Collections.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Collections.2.0.0-preview.14\lib\netnano1.0\nanoFramework.System.Collections.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/nanoFramework.Graphics/packages.config b/nanoFramework.Graphics/packages.config
index 7858b75..766c821 100644
--- a/nanoFramework.Graphics/packages.config
+++ b/nanoFramework.Graphics/packages.config
@@ -4,6 +4,6 @@
   <package id="nanoFramework.ResourceManager" version="2.0.0-preview.8" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Events" version="2.0.0-preview.11" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Native" version="2.0.0-preview.23" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.Collections" version="2.0.0-preview.13" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Collections" version="2.0.0-preview.14" targetFramework="netnano1.0" />
   <package id="Nerdbank.GitVersioning" version="3.9.50" developmentDependency="true" targetFramework="netnano1.0" />
 </packages>
\ No newline at end of file
diff --git a/nanoFramework.Graphics/packages.lock.json b/nanoFramework.Graphics/packages.lock.json
index fe8115f..1db37d5 100644
--- a/nanoFramework.Graphics/packages.lock.json
+++ b/nanoFramework.Graphics/packages.lock.json
@@ -28,9 +28,9 @@
       },
       "nanoFramework.System.Collections": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.13, 2.0.0-preview.13]",
-        "resolved": "2.0.0-preview.13",
-        "contentHash": "LEfv51hBTigSimGDszg82kLLL94u4eHkRTiynim43VHvEidquK+JoxIJa+kAxilkkTl+fFA/cMUxUQG7djAxaA=="
+        "requested": "[2.0.0-preview.14, 2.0.0-preview.14]",
+        "resolved": "2.0.0-preview.14",
+        "contentHash": "bD/aprDzvUS7UGXXnP1NxY2fVw2686gNtiDXt1CV3IMA6YKu7cGXdPXfO8RYDkPNkHJ8omuHNuyUaq0OhJH82g=="
       },
       "Nerdbank.GitVersioning": {
         "type": "Direct",