diff --git a/Dockerfile b/Dockerfile
index c1ee92baa..cf3bf4e0a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM openjdk:11.0.8-jdk
+FROM openjdk:15-jdk-slim
 COPY . /mms
 WORKDIR /mms
 RUN ./gradlew --no-daemon bootJar