diff --git a/Gemfile.lock b/Gemfile.lock
index 527a91fe..eef6f7f0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -417,6 +417,3 @@ DEPENDENCIES
   uglifier (>= 1.3.0)
   web-console (~> 2.0)
   will_paginate (~> 3.0)
-
-BUNDLED WITH
-   1.12.4
diff --git a/config/application.rb b/config/application.rb
index 4b2a543a..f180783b 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -41,3 +41,5 @@ module CodeOcean
     end
   end
 end
+
+Rails.application.config.assets.precompile += %w( markdown-buttons.png )
\ No newline at end of file
diff --git a/config/docker.yml.erb b/config/docker.yml.erb
index 1124e063..9f55d126 100644
--- a/config/docker.yml.erb
+++ b/config/docker.yml.erb
@@ -7,8 +7,8 @@ default: &default
 
 development:
   <<: *default
-  host: tcp://192.168.59.104:2376
-  ws_host: ws://192.168.59.104:2376 #url to connect rails server to docker host
+  host: tcp://127.0.0.1:2376
+  ws_host: ws://127.0.0.1:2376 #url to connect rails server to docker host
   ws_client_protocol: ws:// #set the websocket protocol to be used by the client to connect to the rails server (ws on development, wss on production)
   workspace_root: <%= Rails.root.join('tmp', 'files', Rails.env) %>
   pool: