diff --git a/Dockerfile b/Dockerfile
index 35385620..a5a2b2ad 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM gradle:8-jdk11 AS build
+FROM gradle:8-jdk21-alpine AS build
 COPY --chown=gradle:gradle . /home/gradle/src
 WORKDIR /home/gradle/src
 RUN gradle shadowjar --no-daemon