diff --git a/AddAttachmentPDF/AddAttachmentPDF/AddAttachmentPDF.csproj b/AddAttachmentPDF/AddAttachmentPDF/AddAttachmentPDF.csproj
index be303dc..38ed6d3 100644
--- a/AddAttachmentPDF/AddAttachmentPDF/AddAttachmentPDF.csproj
+++ b/AddAttachmentPDF/AddAttachmentPDF/AddAttachmentPDF.csproj
@@ -2,13 +2,13 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Syncfusion.Pdf.Net.Core" Version="21.1.41" />
+    <PackageReference Include="Syncfusion.Pdf.Net.Core" Version="*" />
   </ItemGroup>
 
 </Project>
diff --git a/ExtractAttachmentPDF/ExtractAttachmentPDF/ExtractAttachmentPDF.csproj b/ExtractAttachmentPDF/ExtractAttachmentPDF/ExtractAttachmentPDF.csproj
index 09c6d7f..38ed6d3 100644
--- a/ExtractAttachmentPDF/ExtractAttachmentPDF/ExtractAttachmentPDF.csproj
+++ b/ExtractAttachmentPDF/ExtractAttachmentPDF/ExtractAttachmentPDF.csproj
@@ -2,13 +2,13 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Syncfusion.Pdf.Net.Core" Version="21.2.3" />
+    <PackageReference Include="Syncfusion.Pdf.Net.Core" Version="*" />
   </ItemGroup>
 
 </Project>
diff --git a/RemoveAttachmentPDF/RemoveAttachmentPDF/RemoveAttachmentPDF.csproj b/RemoveAttachmentPDF/RemoveAttachmentPDF/RemoveAttachmentPDF.csproj
index 09c6d7f..38ed6d3 100644
--- a/RemoveAttachmentPDF/RemoveAttachmentPDF/RemoveAttachmentPDF.csproj
+++ b/RemoveAttachmentPDF/RemoveAttachmentPDF/RemoveAttachmentPDF.csproj
@@ -2,13 +2,13 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Syncfusion.Pdf.Net.Core" Version="21.2.3" />
+    <PackageReference Include="Syncfusion.Pdf.Net.Core" Version="*" />
   </ItemGroup>
 
 </Project>