diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 735a5af..5706fa4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,6 +20,12 @@ jobs:
       - name: Clone repository
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
+      # Ubuntu runner only has native support for .NET 8
+      - name: Setup .NET 9 SDK
+        uses: actions/setup-dotnet@87b7050bc53ea08284295505d98d2aa94301e852 # v4.2.0
+        with:
+          dotnet-version: 9.x
+
       - name: Restore dependencies
         run: dotnet restore