diff --git a/Flow.Launcher.Core/Flow.Launcher.Core.csproj b/Flow.Launcher.Core/Flow.Launcher.Core.csproj
index 8eb411707..189a6669e 100644
--- a/Flow.Launcher.Core/Flow.Launcher.Core.csproj
+++ b/Flow.Launcher.Core/Flow.Launcher.Core.csproj
@@ -1,7 +1,7 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
 
   <PropertyGroup>
-    <TargetFramework>net5.0-windows</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <UseWpf>true</UseWpf>
     <UseWindowsForms>true</UseWindowsForms>
     <OutputType>Library</OutputType>
diff --git a/Flow.Launcher.Infrastructure/Flow.Launcher.Infrastructure.csproj b/Flow.Launcher.Infrastructure/Flow.Launcher.Infrastructure.csproj
index 61433f92d..8153de6c8 100644
--- a/Flow.Launcher.Infrastructure/Flow.Launcher.Infrastructure.csproj
+++ b/Flow.Launcher.Infrastructure/Flow.Launcher.Infrastructure.csproj
@@ -1,6 +1,7 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+
   <PropertyGroup>
-    <TargetFramework>net5.0-windows</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <ProjectGuid>{4FD29318-A8AB-4D8F-AA47-60BC241B8DA3}</ProjectGuid>
     <OutputType>Library</OutputType>
     <UseWpf>true</UseWpf>
diff --git a/Flow.Launcher.Plugin/Flow.Launcher.Plugin.csproj b/Flow.Launcher.Plugin/Flow.Launcher.Plugin.csproj
index 830106d32..698802ba3 100644
--- a/Flow.Launcher.Plugin/Flow.Launcher.Plugin.csproj
+++ b/Flow.Launcher.Plugin/Flow.Launcher.Plugin.csproj
@@ -1,7 +1,7 @@
-<Project Sdk="Microsoft.NET.Sdk">
-	
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+
   <PropertyGroup>
-    <TargetFramework>net5.0-windows</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <ProjectGuid>{8451ECDD-2EA4-4966-BB0A-7BBC40138E80}</ProjectGuid>
     <UseWPF>true</UseWPF>
     <OutputType>Library</OutputType>
diff --git a/Flow.Launcher.Test/Flow.Launcher.Test.csproj b/Flow.Launcher.Test/Flow.Launcher.Test.csproj
index fb972d7d4..e970c47b9 100644
--- a/Flow.Launcher.Test/Flow.Launcher.Test.csproj
+++ b/Flow.Launcher.Test/Flow.Launcher.Test.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net5.0-windows10.0.19041.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <ProjectGuid>{FF742965-9A80-41A5-B042-D6C7D3A21708}</ProjectGuid>
     <OutputType>Library</OutputType>
     <AppDesignerFolder>Properties</AppDesignerFolder>
@@ -54,6 +54,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
   </ItemGroup>
 
 </Project>
\ No newline at end of file
diff --git a/Flow.Launcher/Flow.Launcher.csproj b/Flow.Launcher/Flow.Launcher.csproj
index aeaa26e04..56f0675d6 100644
--- a/Flow.Launcher/Flow.Launcher.csproj
+++ b/Flow.Launcher/Flow.Launcher.csproj
@@ -1,8 +1,8 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
   
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <TargetFramework>net5.0-windows10.0.19041.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <UseWPF>true</UseWPF>
     <UseWindowsForms>true</UseWindowsForms>
     <StartupObject>Flow.Launcher.App</StartupObject>
diff --git a/Flow.Launcher/Properties/PublishProfiles/Net5-SelfContained.pubxml b/Flow.Launcher/Properties/PublishProfiles/Net5-SelfContained.pubxml
index 3c5dcc8b2..e98dba988 100644
--- a/Flow.Launcher/Properties/PublishProfiles/Net5-SelfContained.pubxml
+++ b/Flow.Launcher/Properties/PublishProfiles/Net5-SelfContained.pubxml
@@ -7,7 +7,7 @@ https://go.microsoft.com/fwlink/?LinkID=208121.
     <PublishProtocol>FileSystem</PublishProtocol>
     <Configuration>Release</Configuration>
     <Platform>Any CPU</Platform>
-    <TargetFramework>net5.0-windows10.0.19041.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <PublishDir>..\Output\Release\</PublishDir>
     <RuntimeIdentifier>win-x64</RuntimeIdentifier>
     <SelfContained>true</SelfContained>
diff --git a/Plugins/Flow.Launcher.Plugin.BrowserBookmark/Flow.Launcher.Plugin.BrowserBookmark.csproj b/Plugins/Flow.Launcher.Plugin.BrowserBookmark/Flow.Launcher.Plugin.BrowserBookmark.csproj
index ee2736756..d2a8736a6 100644
--- a/Plugins/Flow.Launcher.Plugin.BrowserBookmark/Flow.Launcher.Plugin.BrowserBookmark.csproj
+++ b/Plugins/Flow.Launcher.Plugin.BrowserBookmark/Flow.Launcher.Plugin.BrowserBookmark.csproj
@@ -1,9 +1,8 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
 
   <PropertyGroup>
     <OutputType>Library</OutputType>
-    <TargetFramework>net5.0-windows</TargetFramework>
-	<UseWPF>true</UseWPF>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <ProjectGuid>{9B130CC5-14FB-41FF-B310-0A95B6894C37}</ProjectGuid>
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Flow.Launcher.Plugin.BrowserBookmark</RootNamespace>
@@ -64,7 +63,14 @@
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>
   </ItemGroup>
-	
+  
+  <ItemGroup>
+    <Page Include="Views\SettingsControl.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </Page>
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="System.Data.SQLite" Version="1.0.112" />
     <PackageReference Include="System.Data.SQLite.Core" Version="1.0.112" />
diff --git a/Plugins/Flow.Launcher.Plugin.Calculator/Flow.Launcher.Plugin.Calculator.csproj b/Plugins/Flow.Launcher.Plugin.Calculator/Flow.Launcher.Plugin.Calculator.csproj
index b3212794b..1090926fc 100644
--- a/Plugins/Flow.Launcher.Plugin.Calculator/Flow.Launcher.Plugin.Calculator.csproj
+++ b/Plugins/Flow.Launcher.Plugin.Calculator/Flow.Launcher.Plugin.Calculator.csproj
@@ -1,8 +1,8 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
 
   <PropertyGroup>
     <OutputType>Library</OutputType>
-    <TargetFramework>net5.0-windows</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <ProjectGuid>{59BD9891-3837-438A-958D-ADC7F91F6F7E}</ProjectGuid>
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Flow.Launcher.Plugin.Caculator</RootNamespace>
diff --git a/Plugins/Flow.Launcher.Plugin.ControlPanel/Flow.Launcher.Plugin.ControlPanel.csproj b/Plugins/Flow.Launcher.Plugin.ControlPanel/Flow.Launcher.Plugin.ControlPanel.csproj
index d69547c6c..06969a135 100644
--- a/Plugins/Flow.Launcher.Plugin.ControlPanel/Flow.Launcher.Plugin.ControlPanel.csproj
+++ b/Plugins/Flow.Launcher.Plugin.ControlPanel/Flow.Launcher.Plugin.ControlPanel.csproj
@@ -1,8 +1,8 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
 
   <PropertyGroup>
     <OutputType>Library</OutputType>
-    <TargetFramework>net5.0-windows</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <ProjectGuid>{1EE20B48-82FB-48A2-8086-675D6DDAB4F0}</ProjectGuid>
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Flow.Launcher.Plugin.ControlPanel</RootNamespace>
diff --git a/Plugins/Flow.Launcher.Plugin.Explorer/Flow.Launcher.Plugin.Explorer.csproj b/Plugins/Flow.Launcher.Plugin.Explorer/Flow.Launcher.Plugin.Explorer.csproj
index 71c0463b5..9f0b46d93 100644
--- a/Plugins/Flow.Launcher.Plugin.Explorer/Flow.Launcher.Plugin.Explorer.csproj
+++ b/Plugins/Flow.Launcher.Plugin.Explorer/Flow.Launcher.Plugin.Explorer.csproj
@@ -1,8 +1,8 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
 
   <PropertyGroup>
     <OutputType>Library</OutputType>
-    <TargetFramework>net5.0-windows</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <UseWPF>true</UseWPF>
     <UseWindowsForms>true</UseWindowsForms>
     <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
diff --git a/Plugins/Flow.Launcher.Plugin.PluginIndicator/Flow.Launcher.Plugin.PluginIndicator.csproj b/Plugins/Flow.Launcher.Plugin.PluginIndicator/Flow.Launcher.Plugin.PluginIndicator.csproj
index 54f0bbd9b..cc280b9a9 100644
--- a/Plugins/Flow.Launcher.Plugin.PluginIndicator/Flow.Launcher.Plugin.PluginIndicator.csproj
+++ b/Plugins/Flow.Launcher.Plugin.PluginIndicator/Flow.Launcher.Plugin.PluginIndicator.csproj
@@ -1,8 +1,8 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
 
   <PropertyGroup>
     <OutputType>Library</OutputType>
-    <TargetFramework>net5.0-windows</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <ProjectGuid>{FDED22C8-B637-42E8-824A-63B5B6E05A3A}</ProjectGuid>
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Flow.Launcher.Plugin.PluginIndicator</RootNamespace>
diff --git a/Plugins/Flow.Launcher.Plugin.PluginsManager/Flow.Launcher.Plugin.PluginsManager.csproj b/Plugins/Flow.Launcher.Plugin.PluginsManager/Flow.Launcher.Plugin.PluginsManager.csproj
index d6ca96b46..cb2507a2b 100644
--- a/Plugins/Flow.Launcher.Plugin.PluginsManager/Flow.Launcher.Plugin.PluginsManager.csproj
+++ b/Plugins/Flow.Launcher.Plugin.PluginsManager/Flow.Launcher.Plugin.PluginsManager.csproj
@@ -1,8 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
-
   <PropertyGroup>
     <OutputType>Library</OutputType>
-    <TargetFramework>net5.0-windows</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <UseWPF>true</UseWPF>
     <UseWindowsForms>true</UseWindowsForms>
     <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
diff --git a/Plugins/Flow.Launcher.Plugin.ProcessKiller/Flow.Launcher.Plugin.ProcessKiller.csproj b/Plugins/Flow.Launcher.Plugin.ProcessKiller/Flow.Launcher.Plugin.ProcessKiller.csproj
index f7a33a94b..a643ebf86 100644
--- a/Plugins/Flow.Launcher.Plugin.ProcessKiller/Flow.Launcher.Plugin.ProcessKiller.csproj
+++ b/Plugins/Flow.Launcher.Plugin.ProcessKiller/Flow.Launcher.Plugin.ProcessKiller.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Library</OutputType>
-    <TargetFramework>net5.0-windows</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <AssemblyName>Flow.Launcher.Plugin.ProcessKiller</AssemblyName>
     <PackageId>Flow.Launcher.Plugin.ProcessKiller</PackageId>
     <Authors>Flow-Launcher</Authors>
diff --git a/Plugins/Flow.Launcher.Plugin.Program/Flow.Launcher.Plugin.Program.csproj b/Plugins/Flow.Launcher.Plugin.Program/Flow.Launcher.Plugin.Program.csproj
index 986ce218c..12e113855 100644
--- a/Plugins/Flow.Launcher.Plugin.Program/Flow.Launcher.Plugin.Program.csproj
+++ b/Plugins/Flow.Launcher.Plugin.Program/Flow.Launcher.Plugin.Program.csproj
@@ -1,8 +1,8 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
 
   <PropertyGroup>
     <OutputType>Library</OutputType>
-    <TargetFramework>net5.0-windows10.0.19041.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <ProjectGuid>{FDB3555B-58EF-4AE6-B5F1-904719637AB4}</ProjectGuid>
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Flow.Launcher.Plugin.Program</RootNamespace>
@@ -69,6 +69,7 @@
   </ItemGroup>
   
   <ItemGroup>
+    <PackageReference Include="Microsoft.Windows.SDK.Contracts" Version="10.0.18362.2005" />
     <PackageReference Include="System.Runtime" Version="4.3.1" />
   </ItemGroup>
 
diff --git a/Plugins/Flow.Launcher.Plugin.Shell/Flow.Launcher.Plugin.Shell.csproj b/Plugins/Flow.Launcher.Plugin.Shell/Flow.Launcher.Plugin.Shell.csproj
index daae28cf6..6e72ebbe4 100644
--- a/Plugins/Flow.Launcher.Plugin.Shell/Flow.Launcher.Plugin.Shell.csproj
+++ b/Plugins/Flow.Launcher.Plugin.Shell/Flow.Launcher.Plugin.Shell.csproj
@@ -1,7 +1,8 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+
   <PropertyGroup>
     <OutputType>Library</OutputType>
-    <TargetFramework>net5.0-windows</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <ProjectGuid>{C21BFF9C-2C99-4B5F-B7C9-A5E6DDDB37B0}</ProjectGuid>
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Flow.Launcher.Plugin.Shell</RootNamespace>
diff --git a/Plugins/Flow.Launcher.Plugin.Sys/Flow.Launcher.Plugin.Sys.csproj b/Plugins/Flow.Launcher.Plugin.Sys/Flow.Launcher.Plugin.Sys.csproj
index 894d50cea..88a23951f 100644
--- a/Plugins/Flow.Launcher.Plugin.Sys/Flow.Launcher.Plugin.Sys.csproj
+++ b/Plugins/Flow.Launcher.Plugin.Sys/Flow.Launcher.Plugin.Sys.csproj
@@ -1,8 +1,8 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
 
   <PropertyGroup>
     <OutputType>Library</OutputType>
-    <TargetFramework>net5.0-windows</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <ProjectGuid>{0B9DE348-9361-4940-ADB6-F5953BFFCCEC}</ProjectGuid>
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Flow.Launcher.Plugin.Sys</RootNamespace>
diff --git a/Plugins/Flow.Launcher.Plugin.Url/Flow.Launcher.Plugin.Url.csproj b/Plugins/Flow.Launcher.Plugin.Url/Flow.Launcher.Plugin.Url.csproj
index 4fb0b1205..671a8b1c2 100644
--- a/Plugins/Flow.Launcher.Plugin.Url/Flow.Launcher.Plugin.Url.csproj
+++ b/Plugins/Flow.Launcher.Plugin.Url/Flow.Launcher.Plugin.Url.csproj
@@ -1,8 +1,8 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
   
   <PropertyGroup>
     <OutputType>Library</OutputType>
-    <TargetFramework>net5.0-windows</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <ProjectGuid>{A3DCCBCA-ACC1-421D-B16E-210896234C26}</ProjectGuid>
     <UseWPF>true</UseWPF>
     <AppDesignerFolder>Properties</AppDesignerFolder>
diff --git a/Plugins/Flow.Launcher.Plugin.WebSearch/Flow.Launcher.Plugin.WebSearch.csproj b/Plugins/Flow.Launcher.Plugin.WebSearch/Flow.Launcher.Plugin.WebSearch.csproj
index 3eb03e52e..af86af842 100644
--- a/Plugins/Flow.Launcher.Plugin.WebSearch/Flow.Launcher.Plugin.WebSearch.csproj
+++ b/Plugins/Flow.Launcher.Plugin.WebSearch/Flow.Launcher.Plugin.WebSearch.csproj
@@ -1,8 +1,8 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+
   <PropertyGroup>
     <OutputType>Library</OutputType>
-    <TargetFramework>net5.0-windows</TargetFramework>
-	<UseWPF>true</UseWPF>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <ProjectGuid>{403B57F2-1856-4FC7-8A24-36AB346B763E}</ProjectGuid>
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Flow.Launcher.Plugin.WebSearch</RootNamespace>
@@ -43,6 +43,14 @@
     <Content Include="Images\*.png">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>
+    <Page Include="SettingsControl.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Include="SearchSourceSetting.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </Page>
   </ItemGroup>
   
   <ItemGroup>
diff --git a/Scripts/flowlauncher.nuspec b/Scripts/flowlauncher.nuspec
index f1f58f2d1..6c5deb86b 100644
--- a/Scripts/flowlauncher.nuspec
+++ b/Scripts/flowlauncher.nuspec
@@ -11,6 +11,6 @@
     <description>Flow Launcher - a launcher for windows</description>
   </metadata>
   <files>
-    <file src="**\*.*" target="lib\net5.0\" exclude="Flow.Launcher.vshost.exe;Flow.Launcher.vshost.exe.config;Flow.Launcher.vshost.exe.manifest;*.nupkg;Setup.exe;RELEASES"/>
+    <file src="**\*.*" target="lib\netcoreapp3.1\" exclude="Flow.Launcher.vshost.exe;Flow.Launcher.vshost.exe.config;Flow.Launcher.vshost.exe.manifest;*.nupkg;Setup.exe;RELEASES"/>
   </files>
 </package>
diff --git a/global.json b/global.json
index 2ad4d9100..c3efffd40 100644
--- a/global.json
+++ b/global.json
@@ -1,6 +1,6 @@
 {
     "sdk": {
-      "version": "5.0.100",
+      "version": "3.1.201",
       "rollForward": "latestFeature"
     }
   }
\ No newline at end of file