diff --git a/Dockerfile b/Dockerfile
index 4e2b77520..7cef46451 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,7 +13,7 @@ EXPOSE 5000
 COPY . /usr/src/app
 
 # Install app dependencies and build static assets.
-RUN yarn install && \
+RUN yarn install --frozen-lockfile && \
     yarn build && \
     yarn install --production && \
     yarn cache clean
diff --git a/Dockerfile.onbuild b/Dockerfile.onbuild
index 2476c6d1a..a34887f3a 100644
--- a/Dockerfile.onbuild
+++ b/Dockerfile.onbuild
@@ -7,7 +7,7 @@ ONBUILD COPY . /usr/src/app
 # we need to have webpack available. We then build the new dependancies and
 # clear out the development dependancies again. After this we of course need to
 # clear out the yarn cache, this saves quite a lot of size.
-ONBUILD RUN NODE_ENV=development yarn install && \
+ONBUILD RUN NODE_ENV=development yarn install --frozen-lockfile && \
             NODE_ENV=production  yarn build && \
             NODE_ENV=production  yarn install --production && \
             yarn cache clean
\ No newline at end of file
diff --git a/circle.yml b/circle.yml
index c97f30cee..013ef28b8 100644
--- a/circle.yml
+++ b/circle.yml
@@ -1,6 +1,6 @@
 machine:
   node:
-    version: 7.6
+    version: 7
   services:
     - docker
     - redis
@@ -20,6 +20,7 @@ dependencies:
     # - sudo service mongod restart
 
     # Install node dependencies.
+    - yarn --version
     - yarn
   cache_directories:
     - ~/.cache/yarn
diff --git a/client/coral-admin/README.md b/client/coral-admin/README.md
deleted file mode 100644
index 7bc9de36e..000000000
--- a/client/coral-admin/README.md
+++ /dev/null
@@ -1,23 +0,0 @@
-
-# Coral Admin
-
-This app handles moderation for Talk (and maybe more later on)
-
-## Installation
-
-    $ yarn install
-    $ cp config.sample.json config.json
-
-Then change `config.json` to adjust it to your project
-
-## Building for production
-
-    $ yarn build
-
-The public folder has everything you need for deployment. You can just copy that folder to your favorite static web server
-
-## Development
-
-    $ yarn start
-
-A development server will be running at http://localhost:4132