diff --git a/namenode/Dockerfile b/namenode/Dockerfile
index fc94288..a2a16ea 100644
--- a/namenode/Dockerfile
+++ b/namenode/Dockerfile
@@ -6,9 +6,11 @@ ENV HDFS_CONF_dfs_namenode_name_dir=file:///hadoop/dfs/name
 RUN mkdir -p /hadoop/dfs/name
 VOLUME /hadoop/dfs/name
 
-ADD run.sh /run.sh
+COPY --chown=hdoop:hdoop run.sh /run.sh
 RUN chmod a+x /run.sh
 
 EXPOSE 9870
 
+USER hdoop
+
 CMD ["/run.sh"]