diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 6ba90cb8c..aeed4cad8 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -29,6 +29,7 @@ jobs:
           node validator.js -s "../data/api/application-service"
           node validator.js -s "../data/api/client-server"
           node validator.js -s "../data/api/push-gateway"
+          node validator.js -s "../data/api/server-server"
 
   check-examples:
     name: "🔎 Check Event schema examples"
@@ -88,6 +89,10 @@ jobs:
             --base-url "https://spec.matrix.org${{ needs.calculate-baseurl.outputs.baseURL }}" \
             --api push-gateway \
             -o spec/push-gateway-api/api.json
+          scripts/dump-swagger.py \
+            --base-url "https://spec.matrix.org${{ needs.calculate-baseurl.outputs.baseURL }}" \
+            --api server-server \
+            -o spec/server-server-api/api.json
           tar -czf openapi.tar.gz spec
       - name: "📤 Artifact upload"
         uses: actions/upload-artifact@v2