diff --git a/Dockerfile_gray b/Dockerfile_gray
index a38ffde..ca4b6e3 100644
--- a/Dockerfile_gray
+++ b/Dockerfile_gray
@@ -1,7 +1,7 @@
 FROM openjdk:8u181-jre-alpine
 ENV LANG en_US.UTF-8
-RUN mkdir -p /usr/share/fonts/chinese
-COPY /usr/share/fonts/korean/* /usr/share/fonts/chinese/
+RUN mkdir -p /usr/share/fonts/korean
+
 RUN set -eux && sed -i 's/dl-cdn.alpinelinux.org/mirrors.ustc.edu.cn/g' /etc/apk/repositories &&\
     apk add tzdata  &&\
     ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && echo 'Asia/Shanghai' >/etc/timezone &&\