- update version of alpine

Dockerfile

@@ -1,5 +1,5 @@
 # Dockerfile for https://github.com/adnanh/webhook
-FROM        golang:alpine3.10 AS build
+FROM        golang:alpine3.11 AS build
 MAINTAINER  Almir Dzinovic <almir@dzinovic.net>
 WORKDIR     /go/src/github.com/adnanh/webhook
 ENV         WEBHOOK_VERSION 2.6.11
@@ -12,7 +12,7 @@ RUN         curl -L --silent -o webhook.tar.gz https://github.com/adnanh/webhook
             rm -rf /var/cache/apk/* && \
             rm -rf /go
 
-FROM        alpine:3.10
+FROM        alpine:3.11
 COPY        --from=build /usr/local/bin/webhook /usr/local/bin/webhook
 WORKDIR     /etc/webhook
 VOLUME      ["/etc/webhook"]