diff --git a/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.21-upgrade-from-nightly-4.20.yaml b/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.21-upgrade-from-nightly-4.20.yaml
index a08ad13fc9d8e..3532a10eaaf7a 100644
--- a/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.21-upgrade-from-nightly-4.20.yaml
+++ b/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.21-upgrade-from-nightly-4.20.yaml
@@ -101,8 +101,7 @@ tests:
     cluster_profile: openshift-org-gcp
     env:
       ADDITIONAL_WORKER_ARCHITECTURE: aarch64
-      ADDITIONAL_WORKER_VM_TYPE: t2a-standard-2
-      COMPUTE_NODE_REPLICAS: "2"
+      ADDITIONAL_WORKER_VM_TYPE: t2a-standard-4
       OCP_ARCH: amd64
       TEST_SUITE: upgrade-conformance
     workflow: openshift-upgrade-gcp-heterogeneous
@@ -133,8 +132,6 @@ tests:
       USE_EXTERNAL_DNS: "true"
     workflow: openshift-e2e-libvirt-vpn
 - as: ocp-ovn-remote-s2s-libvirt-multi-p-p
-  capabilities:
-  - power-s2s-dns
   cron: 0 5 * * 1-4
   steps:
     cluster_profile: libvirt-ppc64le-s2s
@@ -145,9 +142,10 @@ tests:
       BRANCH: "4.19"
       ETCD_DISK_SPEED: slow
       TEST_TYPE: upgrade
+      USE_EXTERNAL_DNS: "true"
     workflow: openshift-e2e-libvirt-upi
 zz_generated_metadata:
   branch: main
   org: openshift
   repo: multiarch
-  variant: nightly-4.21-upgrade-from-nightly-4.20
+  variant: nightly-4.21-upgrade-from-nightly-4.20
\ No newline at end of file
diff --git a/ci-operator/jobs/openshift/multiarch/openshift-multiarch-main-periodics.yaml b/ci-operator/jobs/openshift/multiarch/openshift-multiarch-main-periodics.yaml
index 3123ab4a507c8..c0e3dab86feec 100644
--- a/ci-operator/jobs/openshift/multiarch/openshift-multiarch-main-periodics.yaml
+++ b/ci-operator/jobs/openshift/multiarch/openshift-multiarch-main-periodics.yaml
@@ -45924,7 +45924,6 @@ periodics:
     org: openshift
     repo: multiarch
   labels:
-    capability/power-s2s-dns: power-s2s-dns
     ci-operator.openshift.io/cloud: libvirt-ppc64le-s2s
     ci-operator.openshift.io/cloud-cluster-profile: libvirt-ppc64le-s2s
     ci-operator.openshift.io/variant: nightly-4.21-upgrade-from-nightly-4.20