diff --git a/examples-ca/example-dynamo/deployment/Dockerfile b/examples-ca/example-dynamo/deployment/Dockerfile
index d040d846..9562ec94 100644
--- a/examples-ca/example-dynamo/deployment/Dockerfile
+++ b/examples-ca/example-dynamo/deployment/Dockerfile
@@ -1,4 +1,4 @@
-FROM eclipse-temurin:17-jdk-alpine
+FROM eclipse-temurin:21-jdk-alpine
 VOLUME /tmp
 COPY exampleDynamoDB.jar app.jar
 ENV JAVA_OPTS="-XX:+UseContainerSupport -XX:MaxRAMPercentage=70 -Djava.security.egd=file:/dev/./urandom"