Update Dockerfile.
diff --git a/Dockerfile b/Dockerfile
index 01464aa..5d09998 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -17,7 +17,7 @@
# Dockerfile used for building the website locally.
# NOTE: We need ruby dev headers since one of the jekyll plugins depends on C
# extension (em-websocket) so we sadly can't use -slim image.
-FROM ruby:3.1.1-bullseye
+FROM ruby:3.1.1-slim-bullseye
ARG UNAME=jekyll
ARG UID=1000
@@ -37,9 +37,9 @@
# depend on are very old and unsupported
RUN \
apt-get update && \
- apt-get install -y --no-install-recommends \
+ apt-get install -y --no-install-recommends build-essential \
# Needed for jekyll compressor plugin
- default-jre \
+ openjdk-17-jdk \
git && \
apt-get clean
