diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..2541746
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,6 @@
+# docker volume for postgres
+data/
+
+# webapp local development artifacts
+webapp/node_modules/
+webapp/build/
diff --git a/Dockerfile b/Dockerfile
index 98bff78..686c7c8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,8 @@
-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.json ./webapp/package-lock.json webapp/
 RUN cd ./webapp && \
     npm install
 COPY . .