diff --git a/CHANGELOG.md b/CHANGELOG.md
index d19e5f27..8fe1f94c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,6 +30,7 @@ Please ADD ALL Changes to the UNRELEASED SECTION and not a specific release
 - Dependencies - Updated Meziantou.Analyzer to 2.0.168
 - Dependencies - Updated xunit to 2.9.1
 - Dependencies - Updated Roslynator.Analyzers to 4.12.6
+- SDK - Updated to Dotnet 9.0 RC1
 ### Removed
 ### Deployment Changes
 
diff --git a/src/Credfeto.ChangeLog.Cmd/Credfeto.ChangeLog.Cmd.csproj b/src/Credfeto.ChangeLog.Cmd/Credfeto.ChangeLog.Cmd.csproj
index 61420395..473b431d 100644
--- a/src/Credfeto.ChangeLog.Cmd/Credfeto.ChangeLog.Cmd.csproj
+++ b/src/Credfeto.ChangeLog.Cmd/Credfeto.ChangeLog.Cmd.csproj
@@ -28,7 +28,7 @@
     <RunAOTCompilation>false</RunAOTCompilation>
     <RuntimeIdentifiers>win-x64;win-arm64;osx-x64;osx-arm64;linux-x64;linux-arm64</RuntimeIdentifiers>
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
-    <TargetFrameworks>net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net6.0;net7.0;net8.0;net9.0</TargetFrameworks>
     <TieredCompilation>true</TieredCompilation>
     <TieredPGO>true</TieredPGO>
     <ToolCommandName>changelog</ToolCommandName>
diff --git a/src/Credfeto.ChangeLog.Tests/Credfeto.ChangeLog.Tests.csproj b/src/Credfeto.ChangeLog.Tests/Credfeto.ChangeLog.Tests.csproj
index 3846b9bb..ce92ed74 100644
--- a/src/Credfeto.ChangeLog.Tests/Credfeto.ChangeLog.Tests.csproj
+++ b/src/Credfeto.ChangeLog.Tests/Credfeto.ChangeLog.Tests.csproj
@@ -22,7 +22,7 @@
     <OptimizationPreference>speed</OptimizationPreference>
     <OutputType>Library</OutputType>
     <RunAOTCompilation>false</RunAOTCompilation>
-    <TargetFrameworks>net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net6.0;net7.0;net8.0;net9.0</TargetFrameworks>
     <TieredCompilation>true</TieredCompilation>
     <TieredPGO>true</TieredPGO>
     <TreatSpecificWarningsAsErrors />
diff --git a/src/Credfeto.ChangeLog/Credfeto.ChangeLog.csproj b/src/Credfeto.ChangeLog/Credfeto.ChangeLog.csproj
index 7cf3cf74..87fd0ded 100644
--- a/src/Credfeto.ChangeLog/Credfeto.ChangeLog.csproj
+++ b/src/Credfeto.ChangeLog/Credfeto.ChangeLog.csproj
@@ -24,7 +24,7 @@
     <OutputType>Library</OutputType>
     <RunAOTCompilation>false</RunAOTCompilation>
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
-    <TargetFrameworks>net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net6.0;net7.0;net8.0;net9.0</TargetFrameworks>
     <TieredCompilation>true</TieredCompilation>
     <TieredPGO>true</TieredPGO>
     <TreatSpecificWarningsAsErrors />
diff --git a/src/global.json b/src/global.json
index c8c807f1..19455ad8 100644
--- a/src/global.json
+++ b/src/global.json
@@ -1,7 +1,7 @@
 {
   "sdk": {
-    "version": "8.0.401",
-    "allowPrerelease": false,
+    "version": "9.0.100-rc.1.24452.12",
+    "allowPrerelease": true,
     "rollForward": "latestPatch"
   }
 }