diff --git a/CsvTextFieldParser/CsvTextFieldParser.csproj b/CsvTextFieldParser/CsvTextFieldParser.csproj
index 8fe5b0a..0c726cf 100644
--- a/CsvTextFieldParser/CsvTextFieldParser.csproj
+++ b/CsvTextFieldParser/CsvTextFieldParser.csproj
@@ -16,6 +16,8 @@
     <AssemblyVersion>0.0.0.0</AssemblyVersion>
     <FileVersion>0.0.0.0</FileVersion>
     <LangVersion>6</LangVersion>
+    <SignAssembly>true</SignAssembly>
+    <AssemblyOriginatorKeyFile>keyfile.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
   <ItemGroup>
     <AdditionalFiles Include="stylecop.json" />
diff --git a/CsvTextFieldParser/keyfile.snk b/CsvTextFieldParser/keyfile.snk
new file mode 100644
index 0000000..e8ec9db
Binary files /dev/null and b/CsvTextFieldParser/keyfile.snk differ
diff --git a/appveyor.yml b/appveyor.yml
index 463b429..81a290a 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,6 +1,6 @@
-version: 1.2.1
+version: 1.2.2-preview
 skip_tags: true
-image: Visual Studio 2017
+image: Visual Studio 2019
 configuration: Release
 platform: Any CPU
 dotnet_csproj: