diff --git a/Dockerfile b/Dockerfile
index a371387b67782c10b799fe6deecfe4bd7af7ccdc..854c3b0eda8a7ad060c42301d51b5711fddedbd8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -17,7 +17,7 @@ ENV LC_CTYPE en_US.UTF-8
 # make:    backend building
 # gettext: translations
 
-RUN apk add --update bash yarn git wget make gettext
+RUN apk add --update coreutils bash yarn git wget make gettext
 
 # lein:    backend dependencies and building
 ADD https://raw.github.com/technomancy/leiningen/stable/bin/lein /usr/local/bin/lein
diff --git a/project.clj b/project.clj
index aa01198c91fb3875afa090a02a3c5b4ec1bdf6ba..5167b27a96d187f58f8b8f7c0de1df17b2ff0e95 100644
--- a/project.clj
+++ b/project.clj
@@ -128,7 +128,7 @@
    [prismatic/schema "1.1.11"]                                        ; Data schema declaration and validation library
    [puppetlabs/i18n "0.8.0"]                                          ; Internationalization library
    [redux "0.1.4"]                                                    ; Utility functions for building and composing transducers
-   [ring/ring-core "1.7.1"]
+   [ring/ring-core "1.8.0"]
    [ring/ring-jetty-adapter "1.7.1"]                                  ; Ring adapter using Jetty webserver (used to run a Ring server for unit tests)
    [ring/ring-json "0.4.0"]                                           ; Ring middleware for reading/writing JSON automatically
    [stencil "0.5.0"]                                                  ; Mustache templates for Clojure