Upgrade to ruby 2.4.0

andreausu · andreausu · commit 83079ef1a2d6 · 2017-02-13T19:42:45.000+01:00
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:2.2.4-slim
+FROM ruby:2.4.0-slim
 
 # Set proper locale
 ENV LANG=C.UTF-8
