diff --git a/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-minecraft/seichi-game-data-publisher/cache-proxy/deployment.yaml b/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-minecraft/seichi-game-data-publisher/cache-proxy/deployment.yaml
index 5aa555eb7..7d4ad59a6 100644
--- a/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-minecraft/seichi-game-data-publisher/cache-proxy/deployment.yaml
+++ b/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-minecraft/seichi-game-data-publisher/cache-proxy/deployment.yaml
@@ -22,7 +22,7 @@ spec:
             requests:
               memory: 128Mi
 
-          image: nginx:1.27.2
+          image: nginx:1.27.3
           name: seichi-game-data-publisher-cache-proxy
           ports:
             - containerPort: 80
diff --git a/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-minecraft/seichiassist-downloader/argo-workflows-reverse-proxy.yaml b/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-minecraft/seichiassist-downloader/argo-workflows-reverse-proxy.yaml
index 5bb204a0f..342521291 100644
--- a/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-minecraft/seichiassist-downloader/argo-workflows-reverse-proxy.yaml
+++ b/seichi-onp-k8s/manifests/seichi-kubernetes/apps/seichi-minecraft/seichiassist-downloader/argo-workflows-reverse-proxy.yaml
@@ -34,7 +34,7 @@ spec:
     spec:
       containers:
         - name: nginx
-          image: nginx:1.27.2
+          image: nginx:1.27.3
           volumeMounts:
             - name: conf
               mountPath: /etc/nginx/conf.d/proxy.conf