diff --git a/Dockerfile b/Dockerfile
index 70611e1..9925f36 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,11 @@
-FROM golang:1.16.0-alpine AS build-env
+# Build
+FROM golang:1.16-alpine AS build-env
 RUN GO111MODULE=on go get -v github.com/projectdiscovery/subfinder/v2/cmd/subfinder
 
-FROM alpine:latest
+# Release
+FROM alpine:3.13
+RUN apk -U upgrade --no-cache \
+    && apk add --no-cache bind-tools ca-certificates
 COPY --from=build-env /go/bin/subfinder /usr/local/bin/subfinder
+
 ENTRYPOINT ["subfinder"]