diff --git a/nanoFramework.System.Net.Http-client/System.Net.Http-client.nfproj b/nanoFramework.System.Net.Http-client/System.Net.Http-client.nfproj
index 14e6828f..c2459579 100644
--- a/nanoFramework.System.Net.Http-client/System.Net.Http-client.nfproj
+++ b/nanoFramework.System.Net.Http-client/System.Net.Http-client.nfproj
@@ -139,11 +139,11 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="nanoFramework.System.Collections, Version=1.3.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Collections.1.3.0-preview.9\lib\nanoFramework.System.Collections.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Collections.1.3.0-preview.12\lib\nanoFramework.System.Collections.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="nanoFramework.System.Text, Version=1.1.2.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Text.1.1.2-preview.9\lib\nanoFramework.System.Text.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Text.1.1.2-preview.12\lib\nanoFramework.System.Text.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System.Net, Version=1.7.1.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
diff --git a/nanoFramework.System.Net.Http-client/packages.config b/nanoFramework.System.Net.Http-client/packages.config
index a02ef56b..37bf5123 100644
--- a/nanoFramework.System.Net.Http-client/packages.config
+++ b/nanoFramework.System.Net.Http-client/packages.config
@@ -2,8 +2,8 @@
 <packages>
   <package id="nanoFramework.CoreLibrary" version="1.11.6-preview.2" targetFramework="netnanoframework10" />
   <package id="nanoFramework.Runtime.Events" version="1.9.2-preview.12" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.System.Collections" version="1.3.0-preview.9" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.System.Collections" version="1.3.0-preview.12" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Net" version="1.7.1-preview.15" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.System.Text" version="1.1.2-preview.9" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.System.Text" version="1.1.2-preview.12" targetFramework="netnanoframework10" />
   <package id="Nerdbank.GitVersioning" version="3.1.91" developmentDependency="true" targetFramework="netnanoframework10" />
 </packages>
\ No newline at end of file
diff --git a/nanoFramework.System.Net.Http-server/System.Net.Http-server.nfproj b/nanoFramework.System.Net.Http-server/System.Net.Http-server.nfproj
index 78cd0af8..320b52db 100644
--- a/nanoFramework.System.Net.Http-server/System.Net.Http-server.nfproj
+++ b/nanoFramework.System.Net.Http-server/System.Net.Http-server.nfproj
@@ -133,11 +133,11 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="nanoFramework.System.Collections, Version=1.3.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Collections.1.3.0-preview.9\lib\nanoFramework.System.Collections.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Collections.1.3.0-preview.12\lib\nanoFramework.System.Collections.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="nanoFramework.System.Text, Version=1.1.2.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Text.1.1.2-preview.9\lib\nanoFramework.System.Text.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Text.1.1.2-preview.12\lib\nanoFramework.System.Text.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System.Net, Version=1.7.1.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
diff --git a/nanoFramework.System.Net.Http-server/packages.config b/nanoFramework.System.Net.Http-server/packages.config
index a02ef56b..37bf5123 100644
--- a/nanoFramework.System.Net.Http-server/packages.config
+++ b/nanoFramework.System.Net.Http-server/packages.config
@@ -2,8 +2,8 @@
 <packages>
   <package id="nanoFramework.CoreLibrary" version="1.11.6-preview.2" targetFramework="netnanoframework10" />
   <package id="nanoFramework.Runtime.Events" version="1.9.2-preview.12" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.System.Collections" version="1.3.0-preview.9" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.System.Collections" version="1.3.0-preview.12" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Net" version="1.7.1-preview.15" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.System.Text" version="1.1.2-preview.9" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.System.Text" version="1.1.2-preview.12" targetFramework="netnanoframework10" />
   <package id="Nerdbank.GitVersioning" version="3.1.91" developmentDependency="true" targetFramework="netnanoframework10" />
 </packages>
\ No newline at end of file
diff --git a/nanoFramework.System.Net.Http.Client.nuspec b/nanoFramework.System.Net.Http.Client.nuspec
index c9f842bd..e70ec2b4 100644
--- a/nanoFramework.System.Net.Http.Client.nuspec
+++ b/nanoFramework.System.Net.Http.Client.nuspec
@@ -22,8 +22,8 @@ There is also a package with the server API only and another with the full API.<
     <dependencies>
       <dependency id="nanoFramework.CoreLibrary" version="1.11.6-preview.2" />
       <dependency id="nanoFramework.Runtime.Events" version="1.9.2-preview.12" />
-      <dependency id="nanoFramework.System.Collections" version="1.3.0-preview.9" />
-      <dependency id="nanoFramework.System.Text" version="1.1.2-preview.9" />
+      <dependency id="nanoFramework.System.Collections" version="1.3.0-preview.12" />
+      <dependency id="nanoFramework.System.Text" version="1.1.2-preview.12" />
       <dependency id="nanoFramework.System.Net" version="1.7.1-preview.15" />
     </dependencies>
   </metadata>
diff --git a/nanoFramework.System.Net.Http.Server.nuspec b/nanoFramework.System.Net.Http.Server.nuspec
index e08f6bc9..5aff147d 100644
--- a/nanoFramework.System.Net.Http.Server.nuspec
+++ b/nanoFramework.System.Net.Http.Server.nuspec
@@ -24,8 +24,8 @@ There is also a package with the client API only and another with the full API.
     <dependencies>
       <dependency id="nanoFramework.CoreLibrary" version="1.11.6-preview.2" />
       <dependency id="nanoFramework.Runtime.Events" version="1.9.2-preview.12" />
-      <dependency id="nanoFramework.System.Collections" version="1.3.0-preview.9" />
-      <dependency id="nanoFramework.System.Text" version="1.1.2-preview.9" />
+      <dependency id="nanoFramework.System.Collections" version="1.3.0-preview.12" />
+      <dependency id="nanoFramework.System.Text" version="1.1.2-preview.12" />
       <dependency id="nanoFramework.System.Net" version="1.7.1-preview.15" />
     </dependencies>
   </metadata>
diff --git a/nanoFramework.System.Net.Http.nuspec b/nanoFramework.System.Net.Http.nuspec
index 96c19228..7ae62a27 100644
--- a/nanoFramework.System.Net.Http.nuspec
+++ b/nanoFramework.System.Net.Http.nuspec
@@ -23,8 +23,8 @@ These are meant to be used when there is the need to use smaller assemblies.</de
     <dependencies>
       <dependency id="nanoFramework.CoreLibrary" version="1.11.6-preview.2" />
       <dependency id="nanoFramework.Runtime.Events" version="1.9.2-preview.12" />
-      <dependency id="nanoFramework.System.Collections" version="1.3.0-preview.9" />
-      <dependency id="nanoFramework.System.Text" version="1.1.2-preview.9" />
+      <dependency id="nanoFramework.System.Collections" version="1.3.0-preview.12" />
+      <dependency id="nanoFramework.System.Text" version="1.1.2-preview.12" />
       <dependency id="nanoFramework.System.Net" version="1.7.1-preview.15" />
     </dependencies>
   </metadata>
diff --git a/nanoFramework.System.Net.Http/System.Net.Http.nfproj b/nanoFramework.System.Net.Http/System.Net.Http.nfproj
index 950a0df2..2d23a402 100644
--- a/nanoFramework.System.Net.Http/System.Net.Http.nfproj
+++ b/nanoFramework.System.Net.Http/System.Net.Http.nfproj
@@ -86,11 +86,11 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="nanoFramework.System.Collections, Version=1.3.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Collections.1.3.0-preview.9\lib\nanoFramework.System.Collections.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Collections.1.3.0-preview.12\lib\nanoFramework.System.Collections.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="nanoFramework.System.Text, Version=1.1.2.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Text.1.1.2-preview.9\lib\nanoFramework.System.Text.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Text.1.1.2-preview.12\lib\nanoFramework.System.Text.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System.Net, Version=1.7.1.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
diff --git a/nanoFramework.System.Net.Http/packages.config b/nanoFramework.System.Net.Http/packages.config
index a02ef56b..37bf5123 100644
--- a/nanoFramework.System.Net.Http/packages.config
+++ b/nanoFramework.System.Net.Http/packages.config
@@ -2,8 +2,8 @@
 <packages>
   <package id="nanoFramework.CoreLibrary" version="1.11.6-preview.2" targetFramework="netnanoframework10" />
   <package id="nanoFramework.Runtime.Events" version="1.9.2-preview.12" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.System.Collections" version="1.3.0-preview.9" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.System.Collections" version="1.3.0-preview.12" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Net" version="1.7.1-preview.15" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.System.Text" version="1.1.2-preview.9" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.System.Text" version="1.1.2-preview.12" targetFramework="netnanoframework10" />
   <package id="Nerdbank.GitVersioning" version="3.1.91" developmentDependency="true" targetFramework="netnanoframework10" />
 </packages>
\ No newline at end of file