diff --git a/README.md b/README.md
index f9041cca..3b664796 100644
--- a/README.md
+++ b/README.md
@@ -487,7 +487,7 @@ erDiagram
 sequenceDiagram
   participant repo_pm as Repository - price-monitoring
   participant repo_k8s as Repository - k8s
-  participant deploy as GitHub Actions - Deployment
+  participant deploy as GitHub Actions - CI/CD
   participant vpn as 自宅サーバ - OpenVPN
   participant kp_registry as Kubernetes Pod - Docker Registry
   participant kp_argocd as Kubernetes Pod - ArgoCD