diff --git a/spec/request_helper.rb b/spec/request_helper.rb
index 6aa43422e..ce00bc48e 100644
--- a/spec/request_helper.rb
+++ b/spec/request_helper.rb
@@ -2,6 +2,7 @@ require "webmock/rspec"
 
 module RequestHelper
   def self.stub_http_requests
+    WebMock.disable_net_connect!(allow_localhost: true)
     WebMock.stub_request(:get, /api.postcodes.io/)
       .to_return(status: 200, body: "{\"status\":404,\"error\":\"Postcode not found\"}", headers: {})
     WebMock.stub_request(:post, /api.notifications.service.gov.uk\/v2\/notifications\/email/)