diff --git a/src/Greenshot.Addon.Win10/Greenshot.Addon.Win10.csproj b/src/Greenshot.Addon.Win10/Greenshot.Addon.Win10.csproj
index 50bb16312..3668214cd 100644
--- a/src/Greenshot.Addon.Win10/Greenshot.Addon.Win10.csproj
+++ b/src/Greenshot.Addon.Win10/Greenshot.Addon.Win10.csproj
@@ -20,7 +20,7 @@
   
   <ItemGroup>
     <PackageReference Include="Microsoft.Windows.SDK.Contracts" Version="10.0.18362.2002-preview" />
-	<PackageReference Include="System.Runtime.WindowsRuntime" Version="4.6.0-preview4.19212.13" />
+    <PackageReference Include="System.Runtime.WindowsRuntime" Version="4.6.0-preview4.19212.13" />
     <PackageReference Include="Microsoft.Toolkit.Forms.UI.Controls" Version="6.0.0-preview4.1" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/Greenshot.Addons/Greenshot.Addons.csproj b/src/Greenshot.Addons/Greenshot.Addons.csproj
index 985ff816f..fe923acc9 100644
--- a/src/Greenshot.Addons/Greenshot.Addons.csproj
+++ b/src/Greenshot.Addons/Greenshot.Addons.csproj
@@ -5,10 +5,6 @@
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Platforms>AnyCPU;x64</Platforms>
   </PropertyGroup>
-  
-  <ItemGroup Condition="'$(TargetFramework)' == 'netcoreapp3.0' ">
-	<PackageReference Include="System.ComponentModel.Composition" Version="4.5.0" />
-  </ItemGroup>
 
   <ItemGroup>
     <EmbeddedResource Include="Resources\Checkerboard.Image.png" />
diff --git a/src/Greenshot.Gfx/Greenshot.Gfx.csproj b/src/Greenshot.Gfx/Greenshot.Gfx.csproj
index d94ace26f..97a50a411 100644
--- a/src/Greenshot.Gfx/Greenshot.Gfx.csproj
+++ b/src/Greenshot.Gfx/Greenshot.Gfx.csproj
@@ -10,7 +10,7 @@
   <ItemGroup>
     <PackageReference Include="Dapplo.Addons" Version="1.2.14" />
     <PackageReference Include="Dapplo.Log" Version="1.3.20" />
-	<PackageReference Include="Dapplo.Windows" Version="0.8.33" />
+    <PackageReference Include="Dapplo.Windows" Version="0.8.33" />
     <PackageReference Include="Dapplo.Windows.Dpi" Version="0.8.33" />
     <PackageReference Include="Svg" Version="2.4.3" />
     <PackageReference Include="System.Memory" Version="4.5.3" />
diff --git a/src/Greenshot.PerformanceTests/Greenshot.PerformanceTests.csproj b/src/Greenshot.PerformanceTests/Greenshot.PerformanceTests.csproj
index e399dd198..89f01be5e 100644
--- a/src/Greenshot.PerformanceTests/Greenshot.PerformanceTests.csproj
+++ b/src/Greenshot.PerformanceTests/Greenshot.PerformanceTests.csproj
@@ -9,18 +9,6 @@
     <Platforms>AnyCPU;x64</Platforms>
   </PropertyGroup>
 
-  <ItemGroup Condition="'$(TargetFramework)' == 'netcoreapp3.0'">
-    <PackageReference Include="System.Console" Version="4.3.1" />
-    <PackageReference Include="System.IO" Version="4.3.0" />
-    <PackageReference Include="System.Reflection.Extensions" Version="4.3.0" />
-    <PackageReference Include="System.Reflection.TypeExtensions" Version="4.5.1" />
-    <PackageReference Include="System.Runtime.InteropServices.RuntimeInformation" Version="4.3.0" />
-    <PackageReference Include="System.Security.Cryptography.Algorithms" Version="4.3.1" />
-    <PackageReference Include="System.Security.Cryptography.X509Certificates" Version="4.3.2" />
-    <PackageReference Include="System.Text.Encoding.CodePages" Version="4.5.0" />
-    <PackageReference Include="System.Xml.ReaderWriter" Version="4.3.1" />
-  </ItemGroup>
-
   <ItemGroup>
     <ProjectReference Include="..\Greenshot.Addons\Greenshot.Addons.csproj" />
     <ProjectReference Include="..\Greenshot.Core\Greenshot.Core.csproj" />
@@ -35,6 +23,5 @@
     <PackageReference Include="SharpAvi" Version="2.1.1" />
     <PackageReference Include="System.Memory" Version="4.5.3" />
     <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="4.5.2" />
-    <PackageReference Include="System.Text.Encoding.CodePages" Version="4.5.1" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/Greenshot.Tests/Greenshot.Tests.csproj b/src/Greenshot.Tests/Greenshot.Tests.csproj
index 748e5e0ba..d314f2f34 100644
--- a/src/Greenshot.Tests/Greenshot.Tests.csproj
+++ b/src/Greenshot.Tests/Greenshot.Tests.csproj
@@ -6,18 +6,6 @@
     <Platforms>AnyCPU;x64</Platforms>
   </PropertyGroup>
 
-  <ItemGroup Condition="'$(TargetFramework)' == 'netcoreapp3.0' ">
-    <PackageReference Include="System.Console" Version="4.3.1" />
-    <PackageReference Include="System.IO" Version="4.3.0" />
-    <PackageReference Include="System.Reflection.Extensions" Version="4.3.0" />
-    <PackageReference Include="System.Reflection.TypeExtensions" Version="4.5.1" />
-    <PackageReference Include="System.Runtime.InteropServices.RuntimeInformation" Version="4.3.0" />
-    <PackageReference Include="System.Security.Cryptography.Algorithms" Version="4.3.1" />
-    <PackageReference Include="System.Security.Cryptography.X509Certificates" Version="4.3.2" />
-    <PackageReference Include="System.Text.Encoding.CodePages" Version="4.5.0" />
-    <PackageReference Include="System.Xml.ReaderWriter" Version="4.3.1" />
-  </ItemGroup>
-
   <ItemGroup>
 	<None Include="TestFiles\scroll0.png">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
@@ -45,8 +33,6 @@
     <PackageReference Include="CommandLineParser" Version="2.5.0" />
     <PackageReference Include="Dapplo.Log.XUnit" Version="1.3.20" />
     <PackageReference Include="Dapplo.Windows" Version="0.8.33" />
-    <PackageReference Include="Microsoft.DotNet.PlatformAbstractions" Version="2.1.0" />
-    <PackageReference Include="System.Text.Encoding.CodePages" Version="4.5.1" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.abstractions" Version="2.0.3" />
     <PackageReference Include="xunit.analyzers" Version="0.10.0" />
diff --git a/src/Greenshot/Greenshot.csproj b/src/Greenshot/Greenshot.csproj
index 7bb7dd6a3..ebe50da3b 100644
--- a/src/Greenshot/Greenshot.csproj
+++ b/src/Greenshot/Greenshot.csproj
@@ -19,24 +19,6 @@
     </None>
   </ItemGroup>
   
-  <ItemGroup Condition="'$(TargetFramework)' == 'netcoreapp3.0' ">
-    <PackageReference Include="System.Collections" Version="4.3.0" />
-    <PackageReference Include="System.Console" Version="4.3.1" />
-    <PackageReference Include="System.Diagnostics.Debug" Version="4.3.0" />
-    <PackageReference Include="System.Globalization" Version="4.3.0" />
-    <PackageReference Include="System.IO" Version="4.3.0" />
-    <PackageReference Include="System.Linq" Version="4.3.0" />
-    <PackageReference Include="System.Linq.Expressions" Version="4.3.0" />
-    <PackageReference Include="System.Management" Version="4.5.0" />
-    <PackageReference Include="System.Reflection" Version="4.3.0" />
-    <PackageReference Include="System.Reflection.Extensions" Version="4.3.0" />
-    <PackageReference Include="System.Reflection.TypeExtensions" Version="4.5.1" />
-    <PackageReference Include="System.Resources.ResourceManager" Version="4.3.0" />
-    <PackageReference Include="System.Runtime" Version="4.3.0" />
-    <PackageReference Include="System.Runtime.Extensions" Version="4.3.0" />
-    <PackageReference Include="System.ServiceModel.Syndication" Version="4.5.0" />
-  </ItemGroup>
-
   <ItemGroup>
     <EmbeddedResource Include="Resources\camera.wav" />
     <EmbeddedResource Include="Resources\contextmenu_capturearea.Image.png" />