diff --git a/CLITest/CLITest.csproj b/CLITest/CLITest.csproj
index fa14f65..86a92c3 100644
--- a/CLITest/CLITest.csproj
+++ b/CLITest/CLITest.csproj
@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net5.0</TargetFramework>
+        <TargetFramework>netcoreapp3.1</TargetFramework>
         <LangVersion>8</LangVersion>
     </PropertyGroup>
 
diff --git a/W32.Test/W32.Test.csproj b/W32.Test/W32.Test.csproj
index 5c6824f..7e7570a 100644
--- a/W32.Test/W32.Test.csproj
+++ b/W32.Test/W32.Test.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
   <PropertyGroup>
-    <TargetFramework>net5.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <OutputType>WinExe</OutputType>
     <RootNamespace>CC_Functions.W32.Test</RootNamespace>
     <AssemblyName>CC_Functions.W32.Test</AssemblyName>
diff --git a/W32/W32.csproj b/W32/W32.csproj
index 7594dd8..d6f4d22 100644
--- a/W32/W32.csproj
+++ b/W32/W32.csproj
@@ -5,7 +5,7 @@
     <AssemblyName>CC-Functions.W32</AssemblyName>
     <LangVersion>8</LangVersion>
     <UseWindowsForms>true</UseWindowsForms>
-    <TargetFramework>net5.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <Deterministic>false</Deterministic>
     <Authors>JFronny</Authors>
     <Description>W32 Additions for CC-Functions</Description>