diff --git a/Dockerfile b/Dockerfile
index 6a1457c..f97426a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,12 +2,9 @@ FROM node:lts-alpine
 LABEL maintainer="lizheming <i@imnerd.org>"
 RUN apk upgrade --no-cache && apk add --no-cache bash
 
-ENV ROOT /usr/src/app
-WORKDIR ${ROOT}
+RUN npm install -g coveralls
 
-RUN npm install coveralls
+ADD ./entrypoint.sh /bin
+RUN chmod +x /bin/entrypoint.sh
 
-ADD ./entrypoint.sh .
-RUN chmod +x ./entrypoint.sh
-
-ENTRYPOINT ["/usr/src/app/entrypoint.sh"]
\ No newline at end of file
+ENTRYPOINT ["entrypoint.sh"]