diff --git a/test/appservice/integration/webAPITest.ts b/test/appservice/integration/webAPITest.ts
index 2cafc1a..f6dd607 100644
--- a/test/appservice/integration/webAPITest.ts
+++ b/test/appservice/integration/webAPITest.ts
@@ -13,6 +13,7 @@ interface Context extends Mocha.Context {
     moderator?: MatrixClient
 }
 
+dns.setDefaultResultOrder('ipv4first');
 
 describe("Test that the app service can provision a mjolnir when requested from the web API", function () {
     afterEach(function(this: Context) {