diff --git a/src/Rascal.Analysis.Tests/Rascal.Analysis.Tests.csproj b/src/Rascal.Analysis.Tests/Rascal.Analysis.Tests.csproj
index 1d52653..042c42b 100644
--- a/src/Rascal.Analysis.Tests/Rascal.Analysis.Tests.csproj
+++ b/src/Rascal.Analysis.Tests/Rascal.Analysis.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <IsPackable>false</IsPackable>
     <IsTestProject>true</IsTestProject>
   </PropertyGroup>
diff --git a/src/Rascal.Playground/Rascal.Playground.csproj b/src/Rascal.Playground/Rascal.Playground.csproj
index 443a058..443a7f4 100644
--- a/src/Rascal.Playground/Rascal.Playground.csproj
+++ b/src/Rascal.Playground/Rascal.Playground.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
diff --git a/src/Rascal.Tests/Rascal.Tests.csproj b/src/Rascal.Tests/Rascal.Tests.csproj
index 186cac7..53cee5d 100644
--- a/src/Rascal.Tests/Rascal.Tests.csproj
+++ b/src/Rascal.Tests/Rascal.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <IsPackable>false</IsPackable>
     <IsTestProject>true</IsTestProject>
   </PropertyGroup>
diff --git a/src/Rascal/Rascal.csproj b/src/Rascal/Rascal.csproj
index 58d2bc4..6da909d 100644
--- a/src/Rascal/Rascal.csproj
+++ b/src/Rascal/Rascal.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;net6.0;net7.0;net8.0;net9.0</TargetFrameworks>
   </PropertyGroup>
 
   <!-- Package properties -->