diff --git a/System.Device.Wifi/System.Device.Wifi.nfproj b/System.Device.Wifi/System.Device.Wifi.nfproj
index f71327d..43b841d 100644
--- a/System.Device.Wifi/System.Device.Wifi.nfproj
+++ b/System.Device.Wifi/System.Device.Wifi.nfproj
@@ -72,10 +72,10 @@
       <HintPath>..\packages\nanoFramework.System.IO.Streams.2.0.0-preview.18\lib\netnano1.0\System.IO.Streams.dll</HintPath>
     </Reference>
     <Reference Include="System.Net, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Net.2.0.0-preview.19\lib\netnano1.0\System.Net.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Net.2.0.0-preview.21\lib\netnano1.0\System.Net.dll</HintPath>
     </Reference>
     <Reference Include="System.Threading, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Threading.2.0.0-preview.11\lib\netnano1.0\System.Threading.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Threading.2.0.0-preview.14\lib\netnano1.0\System.Threading.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/System.Device.Wifi/packages.config b/System.Device.Wifi/packages.config
index ce9b365..61e70ed 100644
--- a/System.Device.Wifi/packages.config
+++ b/System.Device.Wifi/packages.config
@@ -3,8 +3,8 @@
   <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Events" version="2.0.0-preview.13" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.IO.Streams" version="2.0.0-preview.18" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.Net" version="2.0.0-preview.19" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Net" version="2.0.0-preview.21" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Text" version="2.0.0-preview.18" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.Threading" version="2.0.0-preview.11" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Threading" 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/System.Device.Wifi/packages.lock.json b/System.Device.Wifi/packages.lock.json
index f57deeb..8c5b4fd 100644
--- a/System.Device.Wifi/packages.lock.json
+++ b/System.Device.Wifi/packages.lock.json
@@ -22,9 +22,9 @@
       },
       "nanoFramework.System.Net": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.19, 2.0.0-preview.19]",
-        "resolved": "2.0.0-preview.19",
-        "contentHash": "Mw8D6KyoknH+5vZfS5lb2Sf9wVAz+Kri+Nhu5HBQuGo+AiXtRF2WMxh/xUO84t9ur90LnxjdSSx6mL9QH6eAxQ=="
+        "requested": "[2.0.0-preview.21, 2.0.0-preview.21]",
+        "resolved": "2.0.0-preview.21",
+        "contentHash": "FwudtrZ58UfZPegEEMjQtjkIzF1IlN6hu8t1N2sKkNske09fXu0N09p7iPFL7D6mF9pwEtTPLOzlO+XdbvFZIg=="
       },
       "nanoFramework.System.Text": {
         "type": "Direct",
@@ -34,9 +34,9 @@
       },
       "nanoFramework.System.Threading": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.11, 2.0.0-preview.11]",
-        "resolved": "2.0.0-preview.11",
-        "contentHash": "2o1p17pjNoV2DNZEaO2EKu8L9tR2CSwE558iVxyCUa8EZ4T4C98E9YyZmryXTlTB/wzEfLzB0I5GAVsQGHWKeg=="
+        "requested": "[2.0.0-preview.14, 2.0.0-preview.14]",
+        "resolved": "2.0.0-preview.14",
+        "contentHash": "4JBZx5/Y3Dd5BZJXHEOw6rD54aWL1p7W2f9QrLRgRQrprIO6AylEFlH2tQuxlyE5YtNRRxaapW4s2mZiOs0Wxg=="
       },
       "Nerdbank.GitVersioning": {
         "type": "Direct",
diff --git a/Tests/NFUnitTestWifiConnection/NFUnitTestWifiConnection.nfproj b/Tests/NFUnitTestWifiConnection/NFUnitTestWifiConnection.nfproj
index 983914f..6b12c6c 100644
--- a/Tests/NFUnitTestWifiConnection/NFUnitTestWifiConnection.nfproj
+++ b/Tests/NFUnitTestWifiConnection/NFUnitTestWifiConnection.nfproj
@@ -67,10 +67,10 @@
       <HintPath>..\..\packages\nanoFramework.System.IO.Streams.2.0.0-preview.18\lib\netnano1.0\System.IO.Streams.dll</HintPath>
     </Reference>
     <Reference Include="System.Net, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.System.Net.2.0.0-preview.19\lib\netnano1.0\System.Net.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.System.Net.2.0.0-preview.21\lib\netnano1.0\System.Net.dll</HintPath>
     </Reference>
     <Reference Include="System.Threading, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.System.Threading.2.0.0-preview.11\lib\netnano1.0\System.Threading.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.System.Threading.2.0.0-preview.14\lib\netnano1.0\System.Threading.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/Tests/NFUnitTestWifiConnection/packages.config b/Tests/NFUnitTestWifiConnection/packages.config
index 3966d4e..b560931 100644
--- a/Tests/NFUnitTestWifiConnection/packages.config
+++ b/Tests/NFUnitTestWifiConnection/packages.config
@@ -3,8 +3,8 @@
   <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Events" version="2.0.0-preview.13" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.IO.Streams" version="2.0.0-preview.18" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.Net" version="2.0.0-preview.19" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Net" version="2.0.0-preview.21" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Text" version="2.0.0-preview.18" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.Threading" version="2.0.0-preview.11" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Threading" version="2.0.0-preview.14" targetFramework="netnano1.0" />
   <package id="nanoFramework.TestFramework" version="4.0.0-preview.58" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/Tests/NFUnitTestWifiConnection/packages.lock.json b/Tests/NFUnitTestWifiConnection/packages.lock.json
index 853d334..7652ec8 100644
--- a/Tests/NFUnitTestWifiConnection/packages.lock.json
+++ b/Tests/NFUnitTestWifiConnection/packages.lock.json
@@ -22,9 +22,9 @@
       },
       "nanoFramework.System.Net": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.19, 2.0.0-preview.19]",
-        "resolved": "2.0.0-preview.19",
-        "contentHash": "Mw8D6KyoknH+5vZfS5lb2Sf9wVAz+Kri+Nhu5HBQuGo+AiXtRF2WMxh/xUO84t9ur90LnxjdSSx6mL9QH6eAxQ=="
+        "requested": "[2.0.0-preview.21, 2.0.0-preview.21]",
+        "resolved": "2.0.0-preview.21",
+        "contentHash": "FwudtrZ58UfZPegEEMjQtjkIzF1IlN6hu8t1N2sKkNske09fXu0N09p7iPFL7D6mF9pwEtTPLOzlO+XdbvFZIg=="
       },
       "nanoFramework.System.Text": {
         "type": "Direct",
@@ -34,9 +34,9 @@
       },
       "nanoFramework.System.Threading": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.11, 2.0.0-preview.11]",
-        "resolved": "2.0.0-preview.11",
-        "contentHash": "2o1p17pjNoV2DNZEaO2EKu8L9tR2CSwE558iVxyCUa8EZ4T4C98E9YyZmryXTlTB/wzEfLzB0I5GAVsQGHWKeg=="
+        "requested": "[2.0.0-preview.14, 2.0.0-preview.14]",
+        "resolved": "2.0.0-preview.14",
+        "contentHash": "4JBZx5/Y3Dd5BZJXHEOw6rD54aWL1p7W2f9QrLRgRQrprIO6AylEFlH2tQuxlyE5YtNRRxaapW4s2mZiOs0Wxg=="
       },
       "nanoFramework.TestFramework": {
         "type": "Direct",
diff --git a/nanoFramework.System.Device.Wifi.nuspec b/nanoFramework.System.Device.Wifi.nuspec
index d2be59a..70e7d09 100644
--- a/nanoFramework.System.Device.Wifi.nuspec
+++ b/nanoFramework.System.Device.Wifi.nuspec
@@ -22,7 +22,7 @@ This package requires a target with System.Device.Wifi v$nativeVersion$ (checksu
       <group targetFramework=".NETnanoFramework1.0">
         <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" />
         <dependency id="nanoFramework.Runtime.Events" version="2.0.0-preview.13" />
-        <dependency id="nanoFramework.System.Net" version="2.0.0-preview.19" />
+        <dependency id="nanoFramework.System.Net" version="2.0.0-preview.21" />
       </group>
     </dependencies>
   </metadata>