diff --git a/System.IO.Ports/System.IO.Ports.nfproj b/System.IO.Ports/System.IO.Ports.nfproj
index 29f6586..28f457e 100644
--- a/System.IO.Ports/System.IO.Ports.nfproj
+++ b/System.IO.Ports/System.IO.Ports.nfproj
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="Current" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="..\packages\Nerdbank.GitVersioning.3.10.85\build\Nerdbank.GitVersioning.props" Condition="Exists('..\packages\Nerdbank.GitVersioning.3.10.85\build\Nerdbank.GitVersioning.props')" />
+  <Import Project="..\packages\Nerdbank.GitVersioning.3.10.91\build\Nerdbank.GitVersioning.props" Condition="Exists('..\packages\Nerdbank.GitVersioning.3.10.91\build\Nerdbank.GitVersioning.props')" />
   <PropertyGroup Label="Globals">
     <NanoFrameworkProjectSystemPath>$(MSBuildExtensionsPath)\nanoFramework\v1.0\</NanoFrameworkProjectSystemPath>
   </PropertyGroup>
@@ -88,8 +88,8 @@
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105.The missing file is {0}.</ErrorText>
     </PropertyGroup>
     <Error Condition="!Exists('..\packages\StyleCop.MSBuild.6.2.0\build\StyleCop.MSBuild.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\StyleCop.MSBuild.6.2.0\build\StyleCop.MSBuild.targets'))" />
-    <Error Condition="!Exists('..\packages\Nerdbank.GitVersioning.3.10.85\build\Nerdbank.GitVersioning.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Nerdbank.GitVersioning.3.10.85\build\Nerdbank.GitVersioning.props'))" />
-    <Error Condition="!Exists('..\packages\Nerdbank.GitVersioning.3.10.85\build\Nerdbank.GitVersioning.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Nerdbank.GitVersioning.3.10.85\build\Nerdbank.GitVersioning.targets'))" />
+    <Error Condition="!Exists('..\packages\Nerdbank.GitVersioning.3.10.91\build\Nerdbank.GitVersioning.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Nerdbank.GitVersioning.3.10.91\build\Nerdbank.GitVersioning.props'))" />
+    <Error Condition="!Exists('..\packages\Nerdbank.GitVersioning.3.10.91\build\Nerdbank.GitVersioning.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Nerdbank.GitVersioning.3.10.91\build\Nerdbank.GitVersioning.targets'))" />
   </Target>
-  <Import Project="..\packages\Nerdbank.GitVersioning.3.10.85\build\Nerdbank.GitVersioning.targets" Condition="Exists('..\packages\Nerdbank.GitVersioning.3.10.85\build\Nerdbank.GitVersioning.targets')" />
+  <Import Project="..\packages\Nerdbank.GitVersioning.3.10.91\build\Nerdbank.GitVersioning.targets" Condition="Exists('..\packages\Nerdbank.GitVersioning.3.10.91\build\Nerdbank.GitVersioning.targets')" />
 </Project>
\ No newline at end of file
diff --git a/System.IO.Ports/packages.config b/System.IO.Ports/packages.config
index 585c921..fd36271 100644
--- a/System.IO.Ports/packages.config
+++ b/System.IO.Ports/packages.config
@@ -4,6 +4,6 @@
   <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.22" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Text" version="2.0.0-preview.23" targetFramework="netnano1.0" />
-  <package id="Nerdbank.GitVersioning" version="3.10.85" developmentDependency="true" targetFramework="netnano1.0" />
+  <package id="Nerdbank.GitVersioning" version="3.10.91" developmentDependency="true" targetFramework="netnano1.0" />
   <package id="StyleCop.MSBuild" version="6.2.0" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/System.IO.Ports/packages.lock.json b/System.IO.Ports/packages.lock.json
index 7aed75b..7ac49ff 100644
--- a/System.IO.Ports/packages.lock.json
+++ b/System.IO.Ports/packages.lock.json
@@ -28,9 +28,9 @@
       },
       "Nerdbank.GitVersioning": {
         "type": "Direct",
-        "requested": "[3.10.85, 3.10.85]",
-        "resolved": "3.10.85",
-        "contentHash": "smhqiTAbnI/6NRn+k7m+a65qKY7nREbnFqFgqxiw3JS8kXiBUOxdCxIZFP9TOpCsoh46DbMlBlcd+dWQYAVVCA=="
+        "requested": "[3.10.91, 3.10.91]",
+        "resolved": "3.10.91",
+        "contentHash": "9MtEXm/um2lQAEoek1EkF4CXNH4JuXxv2jV3Ew2XlzP0LXxFaFiECS7ji8zf1ZaMnPGYbbom+Nm6y4ADc5HNHQ=="
       },
       "StyleCop.MSBuild": {
         "type": "Direct",