diff --git a/config/jobs/kubernetes/sig-scalability/sig-scalability-release-blocking-jobs.yaml b/config/jobs/kubernetes/sig-scalability/sig-scalability-release-blocking-jobs.yaml
index 663425fe5381..302a3afcd50f 100644
--- a/config/jobs/kubernetes/sig-scalability/sig-scalability-release-blocking-jobs.yaml
+++ b/config/jobs/kubernetes/sig-scalability/sig-scalability-release-blocking-jobs.yaml
@@ -57,6 +57,11 @@ periodics:
       # TODO(mborsz): Adjust or remove this change once we understand coredns
       # memory usage regression.
       - --env=DNS_MEMORY_LIMIT=300Mi
+      # TODO(wojtek-t): Remove once we confirm the impact.
+      # That etcd image has an experimental support for concurrent reads
+      # and should visibly help with issues we observer in density test.
+      - --env=ETCD_DOCKER_REPOSITORY=gcr.io/jingyih-gke-dev/etcd-amd64
+      - --env=ETCD_IMAGE=v3.3.10-experimental.2
       - --extract=ci/latest
       - --gcp-nodes=5000
       - --gcp-project=kubernetes-scale