diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index efda799..c2abe4e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
     - name: Setup .NET
       uses: actions/setup-dotnet@v3
       with:
-        dotnet-version: 8.0.x
+        dotnet-version: 9.0.x
     - name: Format Code
       run: dotnet format analyzers Content/CarterService.sln --verbosity diagnostic
     - name: Build Source
diff --git a/appveyor.yml b/appveyor.yml
index 56ccc30..53fc02e 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -12,7 +12,7 @@ nuget:
 install:
 - ps: |
     Invoke-WebRequest -Uri 'https://dot.net/v1/dotnet-install.ps1' -UseBasicParsing -OutFile "$env:temp\dotnet-install.ps1"
-    & $env:temp\dotnet-install.ps1 -Architecture x64 -Version '8.0.100' -InstallDir "$env:ProgramFiles\dotnet"
+    & $env:temp\dotnet-install.ps1 -Architecture x64 -Version '9.0.100' -InstallDir "$env:ProgramFiles\dotnet"
 before_build:
   - cmd: dotnet --version
 build_script: