diff --git a/CharacterMap/CharacterMap/CharacterMap.csproj b/CharacterMap/CharacterMap/CharacterMap.csproj
index cef0004e..b67991ef 100644
--- a/CharacterMap/CharacterMap/CharacterMap.csproj
+++ b/CharacterMap/CharacterMap/CharacterMap.csproj
@@ -28,9 +28,9 @@
     <AppxPackageSigningTimestampDigestAlgorithm>SHA256</AppxPackageSigningTimestampDigestAlgorithm>
     <GenerateTestArtifacts>True</GenerateTestArtifacts>
     <HoursBetweenUpdateChecks>0</HoursBetweenUpdateChecks>
-    <PackageCertificateThumbprint>
-    </PackageCertificateThumbprint>
-    <PackageCertificateKeyFile>CharacterMap_TemporaryKey.pfx</PackageCertificateKeyFile>
+    <PackageCertificateThumbprint>26C214389539071197BF553A01B8C30173D54773</PackageCertificateThumbprint>
+    <PackageCertificateKeyFile>
+    </PackageCertificateKeyFile>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
     <DebugSymbols>true</DebugSymbols>
@@ -331,7 +331,7 @@
     <None Include="..\.editorconfig">
       <Link>.editorconfig</Link>
     </None>
-    <None Include="CharacterMap_TemporaryKey.pfx" />
+    <None Include="Key.snk" />
     <None Include="Package.StoreAssociation.xml" />
     <Content Include="Assets\BadgeLogo.scale-100.png" />
     <Content Include="Assets\BadgeLogo.scale-125.png" />
@@ -496,6 +496,12 @@
   <PropertyGroup Condition=" '$(VisualStudioVersion)' == '' or '$(VisualStudioVersion)' &lt; '14.0' ">
     <VisualStudioVersion>14.0</VisualStudioVersion>
   </PropertyGroup>
+  <PropertyGroup>
+    <SignAssembly>true</SignAssembly>
+  </PropertyGroup>
+  <PropertyGroup>
+    <AssemblyOriginatorKeyFile>Key.snk</AssemblyOriginatorKeyFile>
+  </PropertyGroup>
   <Import Project="$(MSBuildExtensionsPath)\Microsoft\WindowsXaml\v$(VisualStudioVersion)\Microsoft.Windows.UI.Xaml.CSharp.targets" />
   <Import Project="$(MSBuildExtensionsPath)\Microsoft\Multilingual App Toolkit\Microsoft.Multilingual.PriResources.targets" Label="MultilingualAppToolkit" Condition="Exists('$(MSBuildExtensionsPath)\Microsoft\Multilingual App Toolkit\v$(MultilingualAppToolkitVersion)\Microsoft.Multilingual.PriResources.targets')" />
   <Target Name="MATPrerequisite" BeforeTargets="PrepareForBuild" Condition="!Exists('$(MSBuildExtensionsPath)\Microsoft\Multilingual App Toolkit\Microsoft.Multilingual.PriResources.targets')" Label="MultilingualAppToolkit">
diff --git a/CharacterMap/CharacterMap/Key.snk b/CharacterMap/CharacterMap/Key.snk
new file mode 100644
index 00000000..80251f2e
Binary files /dev/null and b/CharacterMap/CharacterMap/Key.snk differ
diff --git a/CharacterMap/CharacterMap/Package.appxmanifest b/CharacterMap/CharacterMap/Package.appxmanifest
index 6af62844..99657ee9 100644
--- a/CharacterMap/CharacterMap/Package.appxmanifest
+++ b/CharacterMap/CharacterMap/Package.appxmanifest
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Package xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10" xmlns:mp="http://schemas.microsoft.com/appx/2014/phone/manifest" xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10" xmlns:uap5="http://schemas.microsoft.com/appx/manifest/uap/windows10/5" IgnorableNamespaces="uap mp">
-  <Identity Name="58027.265370AB8DB33" Publisher="CN=DB299AFD-CD90-4B49-8407-33F11AF0C784" Version="2021.3.0.0" />
+  <Identity Name="58027.265370AB8DB33" Publisher="CN=DB299AFD-CD90-4B49-8407-33F11AF0C784" Version="2021.4.4.0" />
   <mp:PhoneIdentity PhoneProductId="0334f52a-3062-4df8-a87a-7481daa93550" PhonePublisherId="00000000-0000-0000-0000-000000000000" />
   <Properties>
     <DisplayName>Character Map UWP</DisplayName>