diff --git a/lib/pact/hal/http_client.rb b/lib/pact/hal/http_client.rb
index d83b202a..21428439 100644
--- a/lib/pact/hal/http_client.rb
+++ b/lib/pact/hal/http_client.rb
@@ -1,4 +1,5 @@
 require 'pact/retry'
+require 'net/http'
 
 module Pact
   module Hal