diff --git a/PixivFSUWP/Package.appxmanifest b/PixivFSUWP/Package.appxmanifest
index 190ed58..e756ef6 100644
--- a/PixivFSUWP/Package.appxmanifest
+++ b/PixivFSUWP/Package.appxmanifest
@@ -8,14 +8,14 @@
 
   <Identity
     Name="31db69de-89d1-4fa9-9878-fcd942f090ca"
-    Publisher="CN=Tobii"
+    Publisher="CN=Testers"
     Version="2.6.5.0" />
 
   <mp:PhoneIdentity PhoneProductId="31db69de-89d1-4fa9-9878-fcd942f090ca" PhonePublisherId="00000000-0000-0000-0000-000000000000"/>
 
   <Properties>
     <DisplayName>Pixiv UWP</DisplayName>
-    <PublisherDisplayName>Tobii</PublisherDisplayName>
+    <PublisherDisplayName>Testers</PublisherDisplayName>
     <Logo>Assets\StoreLogo.png</Logo>
   </Properties>
 
diff --git a/PixivFSUWP/PixivFSUWP.csproj b/PixivFSUWP/PixivFSUWP.csproj
index 17738f1..7e2e62b 100644
--- a/PixivFSUWP/PixivFSUWP.csproj
+++ b/PixivFSUWP/PixivFSUWP.csproj
@@ -25,6 +25,8 @@
     <AppxBundlePlatforms>x86|x64|arm</AppxBundlePlatforms>
     <AppInstallerUpdateFrequency>1</AppInstallerUpdateFrequency>
     <AppInstallerCheckForUpdateFrequency>OnApplicationRun</AppInstallerCheckForUpdateFrequency>
+    <PackageCertificateThumbprint>AF95DAD1A8E36ADEF33341C5ECC5BCF700A348B7</PackageCertificateThumbprint>
+    <AppxPackageSigningEnabled>True</AppxPackageSigningEnabled>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
     <DebugSymbols>true</DebugSymbols>
diff --git a/PixivFSUWP/PixivFSUWP_TemporaryKey.pfx b/PixivFSUWP/PixivFSUWP_TemporaryKey.pfx
index 579554f..907e4ae 100644
Binary files a/PixivFSUWP/PixivFSUWP_TemporaryKey.pfx and b/PixivFSUWP/PixivFSUWP_TemporaryKey.pfx differ