diff --git a/Dockerfile b/Dockerfile
index 98bff78..4b995f2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,11 @@
-FROM golang:alpine
+FROM golang:1.15-alpine
 WORKDIR /src
 RUN apk add --update npm git
 RUN go get -u github.com/jteeuwen/go-bindata/...
 COPY ./webapp/package.json webapp/package.json
+COPY ./webapp/package-lock.json webapp/package-lock.json
 RUN cd ./webapp && \
-    npm install
+    npm ci
 COPY . .
 RUN cd ./webapp && \
     npm run build