diff --git a/Dockerfile b/Dockerfile
index 29fd43c..6b04adf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,11 @@
 FROM golang:1.10.1
+
 RUN go get -d -v github.com/gree-gorey/geoip-exporter/cmd/geoip-exporter
 WORKDIR /go/src/github.com/gree-gorey/geoip-exporter/cmd/geoip-exporter
 RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o geoip-exporter .
 
 FROM alpine:3.7
 WORKDIR /root/
+RUN apk --no-cache add ca-certificates
 COPY --from=0 /go/src/github.com/gree-gorey/geoip-exporter/cmd/geoip-exporter/geoip-exporter .
-CMD ["./geoip-exporter"]
+CMD ["./geoip-exporter", "--debug", "--interval=10"]