diff --git a/Dockerfile b/Dockerfile
index a9d5377..5ccc76f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM gradle:8.10.2-jdk17 AS build
+FROM gradle:8.10.2-jdk21 AS build
 WORKDIR /app
 
 COPY build.gradle.kts settings.gradle.kts gradlew ./
@@ -9,7 +9,7 @@ RUN ./gradlew dependencies --no-daemon || true
 COPY . .
 RUN ./gradlew clean bootJar --no-daemon
 
-FROM eclipse-temurin:17-jdk-alpine
+FROM eclipse-temurin:21-jre-alpine
 WORKDIR /app
 
 COPY --from=build /app/build/libs/*.jar app.jar
@@ -17,3 +17,4 @@ COPY --from=build /app/build/libs/*.jar app.jar
 EXPOSE 8080
 
 ENTRYPOINT ["sh", "-c", "java $JAVA_OPTS -jar app.jar"]
+