diff --git a/script/setup b/script/setup
index a01c81d6bf5..cbacd2d6e6d 100755
--- a/script/setup
+++ b/script/setup
@@ -32,7 +32,7 @@ fi
 
 # Install all dependencies
 bundle check || bundle install
-npm install
+yarn install
 
 # Set up configurable environment variables
 if [ ! -f config/application.yml ]; then
@@ -40,12 +40,6 @@ if [ ! -f config/application.yml ]; then
   printf "${YELLOW}Copied config/application.yml Make sure to fill it with the appropriate configuration values.\n\n${NO_COLOR}"
 fi
 
-# Set up newrelic.yml for development environment, used by the newrelic_rpm gem
-if [ ! -f config/newrelic.yml ]; then
-  cp config/newrelic.yml.example config/newrelic.yml
-  printf "${YELLOW}Copied config/newrelic.yml which configures the development environment for the newrelic_rpm gem.\n\n${NO_COLOR}"
-fi
-
 # Set up the database for both development and test
 # Confirming the default user and password
 printf '\n\n' | bundle exec rake db:setup db:test:prepare