diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 12d8d7f4..4198d4b6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -46,6 +46,11 @@ jobs:
       with:
         dotnet-version: '8.0.x'
 
+    - name: Setup .NET 9
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: '9.0.x'
+
     - name: 'WireMock.Net.Tests'
       run: dotnet test './test/WireMock.Net.Tests/WireMock.Net.Tests.csproj' -c Release --framework net8.0