Update dockerfile to support new c-extension dependencies

1 files changed, 1 insertions, 1 deletions

diff --git a/Dockerfile b/Dockerfile
index 86bc90a..75ec598 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM alpine:latest
 COPY . /opt/spandx/
-ENV PACKAGES bash ruby ruby-bundler ruby-json ruby-rake git
+ENV PACKAGES build-base cmake bash ruby ruby-dev ruby-bundler ruby-json ruby-rake git libxml2-dev openssl-dev
 RUN apk update && \
   apk add $PACKAGES && \
   gem build /opt/spandx/*.gemspec && \