diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 2dc3a93..2a5a48e 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -16,20 +16,24 @@ as well as the steps you've taken to isolate the issue so far.
 
 # Add a Feature; fix a Bug
 
+All pull requests must contain
+[good commit messages](https://github.com/blog/926-shiny-new-commit-styles).
+
 All pull requests which add a feature or fix a bug must have the
-following things:
+following extra things:
 
 * Integration test(s). These generally go into
   `spec/integration/session_spec.rb`, unless it's something specific to
   the driver, in which case it goes in `spec/integration/driver_spec.rb`.
   (So a test for `page.driver.resize` goes in `driver_spec.rb` but a test
   for `page.execute_script` goes in `session_spec.rb`.)
-* A [good commit
-  message](https://github.com/blog/926-shiny-new-commit-styles)
 * An entry into the changelog. Reference the Github issue number if there is an
   associated bug report. Feel free to add your name if you want to be
   credited.
 
+Documentation-only pull requests must include [ci skip] in their commit
+messages.
+
 # Keep in mind:
 
 * While PhantomJS is capable of compiling and running CoffeeScript code
diff --git a/README.md b/README.md
index 407d3b0..69d96f6 100644
--- a/README.md
+++ b/README.md
@@ -53,11 +53,15 @@ dependencies* (you don't need Qt, or a running X server, etc.)
 
 ### Linux ###
 
-* Download the [32 bit](https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-1.9.8-linux-i686.tar.bz2)
-or [64 bit](https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-1.9.8-linux-x86_64.tar.bz2)
+* Download the [32 bit](https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-2.1.1-linux-i686.tar.bz2)
+or [64 bit](https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-2.1.1-linux-x86_64.tar.bz2)
 binary.
 * Extract the tarball and copy `bin/phantomjs` into your `PATH`
 
+_DO NOT_ use `phantomjs` from the official Ubuntu repositories, since it doesn't
+work well with `poltergeist`. More information
+[here](https://github.com/teampoltergeist/poltergeist/issues/866).
+
 ### Windows ###
 * Download the [precompiled binary](https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-1.9.8-windows.zip)
 for Windows