diff --git a/gradle-example/Dockerfile b/gradle-example/Dockerfile
index 69e08ef1..4379acaf 100644
--- a/gradle-example/Dockerfile
+++ b/gradle-example/Dockerfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM openjdk:19-jdk-alpine
+FROM eclipse-temurin:21-jdk-alpine
 ARG JAR_FILE=JAR_FILE_MUST_BE_SPECIFIED_AS_BUILD_ARG
 COPY ${JAR_FILE} app.jar
 ENTRYPOINT ["java", "-Djava.security.edg=file:/dev/./urandom","-jar","/app.jar"]
\ No newline at end of file
diff --git a/maven-example/Dockerfile b/maven-example/Dockerfile
index 98ca3fca..6193e3a1 100644
--- a/maven-example/Dockerfile
+++ b/maven-example/Dockerfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM openjdk:19-jdk-alpine
+FROM eclipse-temurin:21-jdk-alpine
 ARG JAR_FILE=JAR_FILE_MUST_BE_SPECIFIED_AS_BUILD_ARG
 COPY ${JAR_FILE} app.jar
 ENTRYPOINT ["java", "-jar", "/app.jar"]