diff --git a/EnvelopeGenerator.GeneratorAPI/EnvelopeGenerator.GeneratorAPI.csproj b/EnvelopeGenerator.GeneratorAPI/EnvelopeGenerator.GeneratorAPI.csproj
index 51efca53..7570e6de 100644
--- a/EnvelopeGenerator.GeneratorAPI/EnvelopeGenerator.GeneratorAPI.csproj
+++ b/EnvelopeGenerator.GeneratorAPI/EnvelopeGenerator.GeneratorAPI.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFrameworks>net7.0;net8.0;net9.0</TargetFrameworks>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>