diff --git a/.github/workflows/pull_request.yaml b/.github/workflows/pull_request.yaml
index 517547e..0c87179 100644
--- a/.github/workflows/pull_request.yaml
+++ b/.github/workflows/pull_request.yaml
@@ -13,7 +13,7 @@ jobs:
       owner: ${{ github.repository_owner }}
       trivy-image-config: "trivy.yaml"
       multiarch-awareness: true
-      cache-action: ${{ (github.event_name == 'push') && 'save' || 'restore' }}
+      cache-action: "skip"
       # pinning to use rockcraft 1.3.0 feature `entrypoint-service`
       rockcraft-revisions: '{"amd64": "1783", "arm64": "1784"}'
       arch-skipping-maximize-build-space: '["arm64", "amd64"]'
diff --git a/1.28.2/rockcraft.yaml b/1.28.2/rockcraft.yaml
index 7179eaa..5489213 100644
--- a/1.28.2/rockcraft.yaml
+++ b/1.28.2/rockcraft.yaml
@@ -9,7 +9,6 @@ description: |
   Envoy is an open source edge and service proxy, designed for cloud-native applications.
 platforms:
   amd64:
-  arm64:
 
 services:
   envoy: