diff --git a/.github/workflows/docs.yaml b/.github/workflows/docs.yaml
index 9e71854..b3f56b6 100644
--- a/.github/workflows/docs.yaml
+++ b/.github/workflows/docs.yaml
@@ -28,7 +28,8 @@ jobs:
       - name: Dotnet Setup
         uses: actions/setup-dotnet@v5
         with:
-          dotnet-version: 8.x
+          # Use the .NET SDK from global.json in the root of the repository.
+          global-json-file: global.json
 
       - run: dotnet tool update -g docfx
       - run: |