diff --git a/cpi_fetcher.rb b/cpi_fetcher.rb
index a612b99..eadafca 100644
--- a/cpi_fetcher.rb
+++ b/cpi_fetcher.rb
@@ -6,10 +6,11 @@ require 'json'
 
 class CPIFetcher
   DEFAULT_CPI_SERIES_URL = 'http://api.bls.gov/publicAPI/v2/timeseries/data/CUUSA210SA0'.freeze
-  attr_reader :cpi_series_url
+  attr_reader :url, :bls_token
 
   def initialize
-    @cpi_series_url = URI(ENV['CPI_SERIES_URL'] || DEFAULT_CPI_SERIES_URL)
+    @url = URI(ENV['CPI_SERIES_URL'] || DEFAULT_CPI_SERIES_URL)
+    @bls_token = ENV.fetch('BLS_TOKEN')
   end
 
   def cpi
@@ -25,7 +26,16 @@ class CPIFetcher
   private
 
   def fetch_raw_response
-    JSON.parse(Net::HTTP.get_response(cpi_series_url).body)
+    res = Net::HTTP.start(url.hostname, url.port) do |http|
+      http.request(build_request)
+    end
+    JSON.parse(res.body)
+  end
+
+  def build_request
+    req = Net::HTTP::Get.new(url)
+    req['Authorization'] = "token #{bls_token}"
+    req
   end
 end