title: How to change the version of bundler being used in rails?
body: <p>When I run the following command, it gives me the available installed versions of bundler:</p>
  
  <p>command :     </p>
  
  <pre><code>gem list | grep "bundle"
  </code></pre>
  
  <p>output:</p>
  
  <pre><code>bundler (1.11.2, 1.10.6, 1.10.4, 1.3.6, 1.3.0, 1.3.0.pre)
  </code></pre>
  
  <p>The current version of bundler I obtained was 1.11.2 using the following command:</p>
  
  <pre><code>bundler --version
  </code></pre>
  
  <p>I want to use version 1.3.6
  How do I swap the current version of bundler with the available ones?</p>