diff --git a/seichi-onp-k8s/manifests/seichi-kubernetes/apps/cluster-wide-apps/app-of-other-apps/argo-workflows.yaml b/seichi-onp-k8s/manifests/seichi-kubernetes/apps/cluster-wide-apps/app-of-other-apps/argo-workflows.yaml
index 4b46befe4..b9d6e306b 100644
--- a/seichi-onp-k8s/manifests/seichi-kubernetes/apps/cluster-wide-apps/app-of-other-apps/argo-workflows.yaml
+++ b/seichi-onp-k8s/manifests/seichi-kubernetes/apps/cluster-wide-apps/app-of-other-apps/argo-workflows.yaml
@@ -15,7 +15,7 @@ spec:
 
   destination:
     server: https://kubernetes.default.svc
-    namespace: argo-workflows
+    namespace: argo
   syncPolicy:
     automated:
       prune: true
diff --git a/seichi-onp-k8s/manifests/seichi-kubernetes/apps/root/projects.yaml b/seichi-onp-k8s/manifests/seichi-kubernetes/apps/root/projects.yaml
index 2f39d084f..bcd84a318 100644
--- a/seichi-onp-k8s/manifests/seichi-kubernetes/apps/root/projects.yaml
+++ b/seichi-onp-k8s/manifests/seichi-kubernetes/apps/root/projects.yaml
@@ -47,7 +47,7 @@ spec:
       server: https://kubernetes.default.svc
     - namespace: "argo-events"
       server: https://kubernetes.default.svc
-    - namespace: "argo-workflows"
+    - namespace: "argo"
       server: https://kubernetes.default.svc
   clusterResourceWhitelist:
     - group: "*"