Hugo v0.77.0 (and Go 1.15)

Dockerfile

@@ -1,9 +1,9 @@
 # Hugo doesn't require Go to run, *except* if you're using Hugo Modules. It's
 # much easier to install Node on the Go base image than vice-versa.
-FROM golang:1.14-alpine
+FROM golang:1.15-alpine
 
 # the following version can be overridden at image build time with --build-arg
-ARG HUGO_VERSION=0.75.1
+ARG HUGO_VERSION=0.77.0
 # remove/comment the following line completely to build with vanilla Hugo:
 ARG HUGO_EXTENDED=1
 
@@ -26,7 +26,7 @@ RUN apk update && \
       ruby \
       ${HUGO_EXTENDED:+libc6-compat libstdc++} && \
     update-ca-certificates && \
-    npm install --global postcss-cli autoprefixer @babel/core @babel/cli && \
+    npm install --global postcss postcss-cli autoprefixer @babel/core @babel/cli && \
     pip3 install --upgrade Pygments==2.* && \
     gem install asciidoctor && \
     wget https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_${HUGO_EXTENDED:+extended_}${HUGO_VERSION}_Linux-64bit.tar.gz && \