diff --git a/WebSockets.Client/System.Net.WebSockets.Client.nfproj b/WebSockets.Client/System.Net.WebSockets.Client.nfproj
index 623f3d3..fb2d0b7 100644
--- a/WebSockets.Client/System.Net.WebSockets.Client.nfproj
+++ b/WebSockets.Client/System.Net.WebSockets.Client.nfproj
@@ -108,7 +108,7 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="System.Net, Version=1.8.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Net.1.8.0-preview.5\lib\System.Net.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Net.1.8.0-preview.9\lib\System.Net.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System.Threading, Version=1.0.3.3, Culture=neutral, PublicKeyToken=c07d481e9758c731">
diff --git a/WebSockets.Client/packages.config b/WebSockets.Client/packages.config
index 406cd59..e0eab02 100644
--- a/WebSockets.Client/packages.config
+++ b/WebSockets.Client/packages.config
@@ -3,7 +3,7 @@
   <package id="nanoFramework.CoreLibrary" version="1.11.7" targetFramework="netnanoframework10" />
   <package id="nanoFramework.Runtime.Events" version="1.10.0-preview.1" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Collections" version="1.3.0" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.System.Net" version="1.8.0-preview.5" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.System.Net" version="1.8.0-preview.9" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Text" version="1.1.3-preview.4" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Threading" version="1.0.3" />
   <package id="Nerdbank.GitVersioning" version="3.4.244" targetFramework="netnanoframework10" developmentDependency="true" />
diff --git a/WebSockets.Server/System.Net.WebSockets.Server.nfproj b/WebSockets.Server/System.Net.WebSockets.Server.nfproj
index a9f46ea..7217b80 100644
--- a/WebSockets.Server/System.Net.WebSockets.Server.nfproj
+++ b/WebSockets.Server/System.Net.WebSockets.Server.nfproj
@@ -114,7 +114,7 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="System.Net, Version=1.8.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Net.1.8.0-preview.5\lib\System.Net.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Net.1.8.0-preview.9\lib\System.Net.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System.Threading, Version=1.0.3.3, Culture=neutral, PublicKeyToken=c07d481e9758c731">
diff --git a/WebSockets.Server/packages.config b/WebSockets.Server/packages.config
index 406cd59..e0eab02 100644
--- a/WebSockets.Server/packages.config
+++ b/WebSockets.Server/packages.config
@@ -3,7 +3,7 @@
   <package id="nanoFramework.CoreLibrary" version="1.11.7" targetFramework="netnanoframework10" />
   <package id="nanoFramework.Runtime.Events" version="1.10.0-preview.1" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Collections" version="1.3.0" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.System.Net" version="1.8.0-preview.5" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.System.Net" version="1.8.0-preview.9" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Text" version="1.1.3-preview.4" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Threading" version="1.0.3" />
   <package id="Nerdbank.GitVersioning" version="3.4.244" targetFramework="netnanoframework10" developmentDependency="true" />
diff --git a/WebSockets/System.Net.WebSockets.nfproj b/WebSockets/System.Net.WebSockets.nfproj
index a43a2c9..fae46cd 100644
--- a/WebSockets/System.Net.WebSockets.nfproj
+++ b/WebSockets/System.Net.WebSockets.nfproj
@@ -81,7 +81,7 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="System.Net, Version=1.8.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Net.1.8.0-preview.5\lib\System.Net.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Net.1.8.0-preview.9\lib\System.Net.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System.Threading, Version=1.0.3.3, Culture=neutral, PublicKeyToken=c07d481e9758c731">
diff --git a/WebSockets/packages.config b/WebSockets/packages.config
index 406cd59..e0eab02 100644
--- a/WebSockets/packages.config
+++ b/WebSockets/packages.config
@@ -3,7 +3,7 @@
   <package id="nanoFramework.CoreLibrary" version="1.11.7" targetFramework="netnanoframework10" />
   <package id="nanoFramework.Runtime.Events" version="1.10.0-preview.1" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Collections" version="1.3.0" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.System.Net" version="1.8.0-preview.5" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.System.Net" version="1.8.0-preview.9" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Text" version="1.1.3-preview.4" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Threading" version="1.0.3" />
   <package id="Nerdbank.GitVersioning" version="3.4.244" targetFramework="netnanoframework10" developmentDependency="true" />
diff --git a/nanoframework.System.Net.WebSockets.Client.nuspec b/nanoframework.System.Net.WebSockets.Client.nuspec
index 0c4613c..4b7201d 100644
--- a/nanoframework.System.Net.WebSockets.Client.nuspec
+++ b/nanoframework.System.Net.WebSockets.Client.nuspec
@@ -23,7 +23,7 @@ There are also two other packages, one with the server API only and another with
       <dependency id="nanoFramework.CoreLibrary" version="1.11.7" />
       <dependency id="nanoFramework.Runtime.Events" version="1.10.0-preview.1" />
       <dependency id="nanoFramework.System.Collections" version="1.3.0" />
-      <dependency id="nanoFramework.System.Net" version="1.8.0-preview.5" />
+      <dependency id="nanoFramework.System.Net" version="1.8.0-preview.9" />
       <dependency id="nanoFramework.System.Text" version="1.1.3-preview.4" />
     </dependencies>
   </metadata>
diff --git a/nanoframework.System.Net.WebSockets.Server.nuspec b/nanoframework.System.Net.WebSockets.Server.nuspec
index 8c9b362..b940afe 100644
--- a/nanoframework.System.Net.WebSockets.Server.nuspec
+++ b/nanoframework.System.Net.WebSockets.Server.nuspec
@@ -23,7 +23,7 @@ There are also two other packages, one with the client API only and another with
       <dependency id="nanoFramework.CoreLibrary" version="1.11.7" />
       <dependency id="nanoFramework.Runtime.Events" version="1.10.0-preview.1" />
       <dependency id="nanoFramework.System.Collections" version="1.3.0" />
-      <dependency id="nanoFramework.System.Net" version="1.8.0-preview.5" />
+      <dependency id="nanoFramework.System.Net" version="1.8.0-preview.9" />
       <dependency id="nanoFramework.System.Text" version="1.1.3-preview.4" />
     </dependencies>
   </metadata>
diff --git a/nanoframework.System.Net.WebSockets.nuspec b/nanoframework.System.Net.WebSockets.nuspec
index fcb471a..b77ffcc 100644
--- a/nanoframework.System.Net.WebSockets.nuspec
+++ b/nanoframework.System.Net.WebSockets.nuspec
@@ -24,7 +24,7 @@ These are meant to be used when there is the need to use smaller assemblies.</de
       <dependency id="nanoFramework.CoreLibrary" version="1.11.7" />
       <dependency id="nanoFramework.Runtime.Events" version="1.10.0-preview.1" />
       <dependency id="nanoFramework.System.Collections" version="1.3.0" />
-      <dependency id="nanoFramework.System.Net" version="1.8.0-preview.5" />
+      <dependency id="nanoFramework.System.Net" version="1.8.0-preview.9" />
       <dependency id="nanoFramework.System.Text" version="1.1.3-preview.4" />
     </dependencies>
   </metadata>