diff --git a/.buildkite/pipeline.yaml b/.buildkite/pipeline.yaml
index 8a27b0d83..d829c2efa 100644
--- a/.buildkite/pipeline.yaml
+++ b/.buildkite/pipeline.yaml
@@ -265,6 +265,8 @@ steps:
   - <<: *common
     label: ":earth_americas: Website tests"
     command: make website-build
+    agents:
+      arch: "amd64"
 
   # Networking tests.
   - <<: *common