diff --git a/Samples/VpSharp.CSharp_Sample/VpSharp.CSharp_Sample.csproj b/Samples/VpSharp.CSharp_Sample/VpSharp.CSharp_Sample.csproj
index f1b0eac..1d3086f 100644
--- a/Samples/VpSharp.CSharp_Sample/VpSharp.CSharp_Sample.csproj
+++ b/Samples/VpSharp.CSharp_Sample/VpSharp.CSharp_Sample.csproj
@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net6.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
     </PropertyGroup>
diff --git a/Samples/VpSharp.VB_Sample/VpSharp.VB_Sample.vbproj b/Samples/VpSharp.VB_Sample/VpSharp.VB_Sample.vbproj
index 7f9c093..0874923 100644
--- a/Samples/VpSharp.VB_Sample/VpSharp.VB_Sample.vbproj
+++ b/Samples/VpSharp.VB_Sample/VpSharp.VB_Sample.vbproj
@@ -3,7 +3,7 @@
     <PropertyGroup>
         <OutputType>Exe</OutputType>
         <RootNamespace>VpSharp.VB_Sample</RootNamespace>
-        <TargetFramework>net6.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
     </PropertyGroup>
 
     <ItemGroup>