Bundle install not using rbenv local Ruby version

I am trying to install gems for a new Rails project using bundler:

$ bundle install --path

I've set my local Ruby version to 2.3.1 using rbenv, but bundler is still using my system Ruby (2.0.0).

$ rbenv local

2.3.1



$ echo $PATH

/Users/jenniferpierce/.rbenv/shims:/Users/jenniferpierce/.rbenv/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Library/PostgreSQL/9.5/bin



$ which ruby

/Users/jenniferpierce/.rbenv/shims/ruby



$ ruby -v

ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-darwin15]



$ bundle install --path

Your Ruby version is 2.0.0, but your Gemfile specified 2.3.1

My bash profile includes:

export PATH="$HOME/.rbenv/bin:$PATH"

eval "$(rbenv init -)"

I've run:

$ rbenv rehash

and restarted my terminal. Maybe I'm missing something super obvious? Any ideas would be appreciated.