diff --git a/lib/puppet/provider/grafana.rb b/lib/puppet/provider/grafana.rb
index 1f0f60b..c0c6444 100644
--- a/lib/puppet/provider/grafana.rb
+++ b/lib/puppet/provider/grafana.rb
@@ -1,67 +1,70 @@
 # frozen_string_literal: true
 
 #    Copyright 2015 Mirantis, Inc.
 #
 require 'cgi'
 require 'json'
 require 'net/http'
 
 class Puppet::Provider::Grafana < Puppet::Provider
   # Helper methods
   def grafana_host
     @grafana_host ||= URI.parse(resource[:grafana_url]).host
     @grafana_host
   end
 
   def grafana_port
     @grafana_port ||= URI.parse(resource[:grafana_url]).port
     @grafana_port
   end
 
   def grafana_scheme
     @grafana_scheme ||= URI.parse(resource[:grafana_url]).scheme
     @grafana_scheme
   end
 
   # Return a Net::HTTP::Response object
   def send_request(operation = 'GET', path = '', data = nil, search_path = {})
     request = nil
     encoded_search = ''
 
     if URI.respond_to?(:encode_www_form)
       encoded_search = URI.encode_www_form(search_path)
     else
       # Ideally we would have use URI.encode_www_form but it isn't
       # available with Ruby 1.8.x that ships with CentOS 6.5.
       encoded_search = search_path.to_a.map do |x|
         x.map { |y| CGI.escape(y.to_s) }.join('=')
       end
       encoded_search = encoded_search.join('&')
     end
     uri = URI.parse format('%s://%s:%d%s?%s', grafana_scheme, grafana_host, grafana_port, path, encoded_search)
 
     case operation.upcase
     when 'POST'
       request = Net::HTTP::Post.new(uri.request_uri)
       request.body = data.to_json
     when 'PUT'
       request = Net::HTTP::Put.new(uri.request_uri)
       request.body = data.to_json
     when 'GET'
       request = Net::HTTP::Get.new(uri.request_uri)
     when 'DELETE'
       request = Net::HTTP::Delete.new(uri.request_uri)
+    when 'PATCH'
+      request = Net::HTTP::Patch.new(uri.request_uri)
+      request.body = data.to_json
     else
       raise Puppet::Error, format('Unsupported HTTP operation %s', operation)
     end
 
     request.content_type = 'application/json'
     request.basic_auth resource[:grafana_user], resource[:grafana_password] if resource[:grafana_user] && resource[:grafana_password]
 
     Net::HTTP.start(grafana_host, grafana_port,
                     use_ssl: grafana_scheme == 'https',
                     verify_mode: OpenSSL::SSL::VERIFY_NONE) do |http|
       http.request(request)
     end
   end
 end