diff --git a/Dockerfile b/Dockerfile
index e91959a..cf4b240 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,29 +1,10 @@
-FROM openjdk:8-alpine as assembly
-
-# based on https://hub.docker.com/r/hseeberger/scala-sbt/dockerfile
-
-ENV SCALA_VERSION 2.13.4
-ENV SBT_VERSION 1.4.7
-
-RUN \
-  apk add --no-cache curl bash && \
-  curl -fsL https://downloads.lightbend.com/scala/$SCALA_VERSION/scala-$SCALA_VERSION.tgz | tar xfz - -C /usr/local/
-
-ENV SCALA_HOME /usr/local/scala-${SCALA_VERSION}
-ENV PATH "${SCALA_HOME}/bin:${PATH}"
-
-RUN \
-  curl -fsL https://github.com/sbt/sbt/releases/download/v${SBT_VERSION}/sbt-${SBT_VERSION}.tgz | tar xfz - -C /usr/local/ && \
-  cd /usr/local && \
-  /usr/local/sbt/bin/sbt sbtVersion
-
-ENV PATH "/usr/local/sbt/bin:${PATH}"
+FROM sbtscala/scala-sbt:eclipse-temurin-jammy-21_35_1.9.7_3.3.1 as assembly
 
 WORKDIR /usr/local/src
 COPY build.sbt ./
 COPY src ./src
 COPY project ./project
-RUN sbt assembly
+RUN --mount=type=cache,target=/root/.ivy2 sbt assembly
 
-FROM openjdk:8-alpine
-COPY --from=assembly /usr/local/src/target/scala-2.13/sparql-test-runner /usr/local/bin/
+FROM eclipse-temurin:21-jre-alpine
+COPY --from=assembly /usr/local/src/target/scala-*/sparql-test-runner /usr/local/bin/