diff --git a/Dockerfile b/Dockerfile
index 7ecce02d5..1190ba84c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,6 +8,7 @@ EXPOSE 4000
 ADD Gemfile .
 ADD Gemfile.lock .
 
+RUN gem install bundler
 RUN bundle config build.nokogiri --use-system-libraries
 RUN bundle install
 
diff --git a/Gemfile.lock b/Gemfile.lock
index dfbefb30d..8ef02903b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -267,4 +267,4 @@ DEPENDENCIES
   mdl
 
 BUNDLED WITH
-   1.16.1
+   2.0.1