diff --git a/Dockerfile b/Dockerfile
index e412faa..c0def7f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,6 +13,6 @@ RUN yum install kde-l10n-Chinese -y && \
     yum install glibc-common -y && \
     localedef -c -f UTF-8 -i zh_CN zh_CN.utf8
 ENV LC_ALL zh_CN.UTF-8
-ENV JAVA_OPTS="-Xms256m -Xmx2048m"
+ENV JAVA_OPTS="-server -Xms5g -Xmx5g -XX:MaxMetaspaceSize=512m -XX:+UseG1GC -XX:MaxGCPauseMillis=200"
 WORKDIR /data-dump
 ENTRYPOINT [ "sh", "-c", "nginx && sh /xxl-job-admin/start.sh && java $JAVA_OPTS -jar data-dump.jar" ]
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