diff --git a/appveyor.yml b/appveyor.yml
index 8d80c6a..522e5af 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -8,7 +8,7 @@ branches:
     - master
     - develop
 
-image: Visual Studio 2017
+image: Visual Studio 2019
 
 version: 0.0.0.{build}
 configuration: Release
diff --git a/src/WixToolset.Harvesters.Extensibility/WixToolset.Harvesters.Extensibility.csproj b/src/WixToolset.Harvesters.Extensibility/WixToolset.Harvesters.Extensibility.csproj
index a3f0e72..3c4ce76 100644
--- a/src/WixToolset.Harvesters.Extensibility/WixToolset.Harvesters.Extensibility.csproj
+++ b/src/WixToolset.Harvesters.Extensibility/WixToolset.Harvesters.Extensibility.csproj
@@ -17,7 +17,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
-    <PackageReference Include="Nerdbank.GitVersioning" Version="3.1.91" PrivateAssets="all" />
+    <PackageReference Include="Nerdbank.GitVersioning" Version="3.3.37" PrivateAssets="all" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/WixToolset.Harvesters/WixToolset.Harvesters.csproj b/src/WixToolset.Harvesters/WixToolset.Harvesters.csproj
index 44e771a..746065b 100644
--- a/src/WixToolset.Harvesters/WixToolset.Harvesters.csproj
+++ b/src/WixToolset.Harvesters/WixToolset.Harvesters.csproj
@@ -28,6 +28,6 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
-    <PackageReference Include="Nerdbank.GitVersioning" Version="2.1.65" PrivateAssets="All" />
+    <PackageReference Include="Nerdbank.GitVersioning" Version="3.3.37" PrivateAssets="All" />
   </ItemGroup>
 </Project>