diff --git a/System.IO.FileSystem.UnitTests/System.IO.FileSystem.UnitTests.nfproj b/System.IO.FileSystem.UnitTests/System.IO.FileSystem.UnitTests.nfproj
index 3dbecda..bae389f 100644
--- a/System.IO.FileSystem.UnitTests/System.IO.FileSystem.UnitTests.nfproj
+++ b/System.IO.FileSystem.UnitTests/System.IO.FileSystem.UnitTests.nfproj
@@ -52,7 +52,7 @@
       <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.39\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.System.Text, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.8\lib\nanoFramework.System.Text.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.13\lib\netnano1.0\nanoFramework.System.Text.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.TestFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\packages\nanoFramework.TestFramework.4.0.0-preview.47\lib\nanoFramework.TestFramework.dll</HintPath>
@@ -61,7 +61,7 @@
       <HintPath>..\packages\nanoFramework.TestFramework.4.0.0-preview.47\lib\nanoFramework.UnitTestLauncher.exe</HintPath>
     </Reference>
     <Reference Include="System.IO.Streams, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.IO.Streams.2.0.0-preview.10\lib\System.IO.Streams.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.IO.Streams.2.0.0-preview.13\lib\netnano1.0\System.IO.Streams.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/System.IO.FileSystem.UnitTests/packages.config b/System.IO.FileSystem.UnitTests/packages.config
index 15f37b6..5f0b7bd 100644
--- a/System.IO.FileSystem.UnitTests/packages.config
+++ b/System.IO.FileSystem.UnitTests/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.39" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.IO.Streams" version="2.0.0-preview.10" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.Text" version="2.0.0-preview.8" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.IO.Streams" version="2.0.0-preview.13" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Text" version="2.0.0-preview.13" targetFramework="netnano1.0" />
   <package id="nanoFramework.TestFramework" version="4.0.0-preview.47" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/System.IO.FileSystem.UnitTests/packages.lock.json b/System.IO.FileSystem.UnitTests/packages.lock.json
index 97549a3..07b6c1e 100644
--- a/System.IO.FileSystem.UnitTests/packages.lock.json
+++ b/System.IO.FileSystem.UnitTests/packages.lock.json
@@ -10,15 +10,15 @@
       },
       "nanoFramework.System.IO.Streams": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.10, 2.0.0-preview.10]",
-        "resolved": "2.0.0-preview.10",
-        "contentHash": "6B4Q7OciuQm2ebEt8JqZvM4Eka0WgQYYlH73AmsNXDSn6G7Xw5ijJVVN2vIvu5qb2qda1Rpvxbmjp1ykk3hYKg=="
+        "requested": "[2.0.0-preview.13, 2.0.0-preview.13]",
+        "resolved": "2.0.0-preview.13",
+        "contentHash": "TQLs+6/JdXhhK+pkvx9/iVnHLhTJ2oo7XBusC73lspLbeWlIzGRwrA9ZyQejdXh44URE05neaimJey786hhZlA=="
       },
       "nanoFramework.System.Text": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.8, 2.0.0-preview.8]",
-        "resolved": "2.0.0-preview.8",
-        "contentHash": "dvaXLJo+X68BVWgXssjk0XXJUwQNwA9h0+wbDgfbE2Hc3/pKljhAvuluD8n4W5MZYJ6YI3I/BhPreBjW7W2Fvw=="
+        "requested": "[2.0.0-preview.13, 2.0.0-preview.13]",
+        "resolved": "2.0.0-preview.13",
+        "contentHash": "kTEKvplebAWeA7j4jb9adST6dxH28Q6c99+Jms6p8cMFxlrUoWhL/GdEiPaPnJSVy1XtsgIfh38WbR757qF8yw=="
       },
       "nanoFramework.TestFramework": {
         "type": "Direct",
diff --git a/System.IO.FileSystem/System.IO.FileSystem.nfproj b/System.IO.FileSystem/System.IO.FileSystem.nfproj
index 33a610d..6acb5c7 100644
--- a/System.IO.FileSystem/System.IO.FileSystem.nfproj
+++ b/System.IO.FileSystem/System.IO.FileSystem.nfproj
@@ -83,10 +83,10 @@
       <HintPath>..\packages\nanoFramework.Runtime.Events.2.0.0-preview.10\lib\netnano1.0\nanoFramework.Runtime.Events.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.System.Text, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.8\lib\nanoFramework.System.Text.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.13\lib\netnano1.0\nanoFramework.System.Text.dll</HintPath>
     </Reference>
     <Reference Include="System.IO.Streams, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.IO.Streams.2.0.0-preview.10\lib\System.IO.Streams.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.IO.Streams.2.0.0-preview.13\lib\netnano1.0\System.IO.Streams.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ProjectExtensions>
diff --git a/System.IO.FileSystem/packages.config b/System.IO.FileSystem/packages.config
index bd54b70..cb951c5 100644
--- a/System.IO.FileSystem/packages.config
+++ b/System.IO.FileSystem/packages.config
@@ -2,7 +2,7 @@
 <packages>
   <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.39" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Events" version="2.0.0-preview.10" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.IO.Streams" version="2.0.0-preview.10" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.Text" version="2.0.0-preview.8" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.IO.Streams" version="2.0.0-preview.13" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Text" version="2.0.0-preview.13" 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.IO.FileSystem/packages.lock.json b/System.IO.FileSystem/packages.lock.json
index 9cd20c6..10acd30 100644
--- a/System.IO.FileSystem/packages.lock.json
+++ b/System.IO.FileSystem/packages.lock.json
@@ -16,15 +16,15 @@
       },
       "nanoFramework.System.IO.Streams": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.10, 2.0.0-preview.10]",
-        "resolved": "2.0.0-preview.10",
-        "contentHash": "6B4Q7OciuQm2ebEt8JqZvM4Eka0WgQYYlH73AmsNXDSn6G7Xw5ijJVVN2vIvu5qb2qda1Rpvxbmjp1ykk3hYKg=="
+        "requested": "[2.0.0-preview.13, 2.0.0-preview.13]",
+        "resolved": "2.0.0-preview.13",
+        "contentHash": "TQLs+6/JdXhhK+pkvx9/iVnHLhTJ2oo7XBusC73lspLbeWlIzGRwrA9ZyQejdXh44URE05neaimJey786hhZlA=="
       },
       "nanoFramework.System.Text": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.8, 2.0.0-preview.8]",
-        "resolved": "2.0.0-preview.8",
-        "contentHash": "dvaXLJo+X68BVWgXssjk0XXJUwQNwA9h0+wbDgfbE2Hc3/pKljhAvuluD8n4W5MZYJ6YI3I/BhPreBjW7W2Fvw=="
+        "requested": "[2.0.0-preview.13, 2.0.0-preview.13]",
+        "resolved": "2.0.0-preview.13",
+        "contentHash": "kTEKvplebAWeA7j4jb9adST6dxH28Q6c99+Jms6p8cMFxlrUoWhL/GdEiPaPnJSVy1XtsgIfh38WbR757qF8yw=="
       },
       "Nerdbank.GitVersioning": {
         "type": "Direct",
diff --git a/nanoFramework.System.IO.FileSystem.nuspec b/nanoFramework.System.IO.FileSystem.nuspec
index d006653..a6c7b8e 100644
--- a/nanoFramework.System.IO.FileSystem.nuspec
+++ b/nanoFramework.System.IO.FileSystem.nuspec
@@ -22,8 +22,8 @@ This package requires a target with System.IO.FileSystem v$nativeVersion$ (check
       <group targetFramework=".NETnanoFramework1.0">
         <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.39" />
         <dependency id="nanoFramework.Runtime.Events" version="2.0.0-preview.10" />
-        <dependency id="nanoFramework.System.IO.Streams" version="2.0.0-preview.10" />
-        <dependency id="nanoFramework.System.Text" version="2.0.0-preview.8" />
+        <dependency id="nanoFramework.System.IO.Streams" version="2.0.0-preview.13" />
+        <dependency id="nanoFramework.System.Text" version="2.0.0-preview.13" />
       </group>
     </dependencies>
   </metadata>