diff --git a/kubernetes-custom-sample/nodejs/src/backend/Dockerfile b/kubernetes-custom-sample/nodejs/src/backend/Dockerfile
index 7abe67ca..59792fb6 100644
--- a/kubernetes-custom-sample/nodejs/src/backend/Dockerfile
+++ b/kubernetes-custom-sample/nodejs/src/backend/Dockerfile
@@ -1,5 +1,5 @@
 # Use base node 12-slim image from Docker hub
-FROM node:18-slim
+FROM node:26-slim
 
 WORKDIR /backend
 
diff --git a/kubernetes-custom-sample/nodejs/src/frontend/Dockerfile b/kubernetes-custom-sample/nodejs/src/frontend/Dockerfile
index 7ede7c06..d07181f3 100644
--- a/kubernetes-custom-sample/nodejs/src/frontend/Dockerfile
+++ b/kubernetes-custom-sample/nodejs/src/frontend/Dockerfile
@@ -1,5 +1,5 @@
 # Use base node 12-slim image from Docker hub
-FROM node:18-slim
+FROM node:26-slim
 
 WORKDIR /frontend