diff --git a/k8s/images/caching-app/Dockerfile b/k8s/images/caching-app/Dockerfile
index 5e3ab974..97e5a547 100644
--- a/k8s/images/caching-app/Dockerfile
+++ b/k8s/images/caching-app/Dockerfile
@@ -14,7 +14,7 @@
 #  See the License for the specific language governing permissions and
 #  limitations under the License.
 
-FROM node:8
+FROM node:20-alpine
 
 WORKDIR /usr/src/app
 
diff --git a/k8s/images/node-app-1/Dockerfile b/k8s/images/node-app-1/Dockerfile
index 5e3ab974..97e5a547 100644
--- a/k8s/images/node-app-1/Dockerfile
+++ b/k8s/images/node-app-1/Dockerfile
@@ -14,7 +14,7 @@
 #  See the License for the specific language governing permissions and
 #  limitations under the License.
 
-FROM node:8
+FROM node:20-alpine
 
 WORKDIR /usr/src/app
 
diff --git a/k8s/images/node-app-2/Dockerfile b/k8s/images/node-app-2/Dockerfile
index 5e3ab974..97e5a547 100644
--- a/k8s/images/node-app-2/Dockerfile
+++ b/k8s/images/node-app-2/Dockerfile
@@ -14,7 +14,7 @@
 #  See the License for the specific language governing permissions and
 #  limitations under the License.
 
-FROM node:8
+FROM node:20-alpine
 
 WORKDIR /usr/src/app