diff --git a/js/config/sparky.pm2.config.js b/js/config/sparky.pm2.config.js
index 53b74f6..a5409e2 100644
--- a/js/config/sparky.pm2.config.js
+++ b/js/config/sparky.pm2.config.js
@@ -44,7 +44,7 @@ module.exports = {
       cwd: '/data/share/phet/continuous-testing/ct-node-client/aqua',
 
       // This is the static IP for sparky, but it gets around the DNS, which was causing trouble in https://github.com/phetsims/aqua/issues/185#issuecomment-1604337447
-      args: 'ct-node-client --ctID="Sparky Node Puppeteer" --serverURL=https://128.138.93.172/',
+      args: 'ct-node-client --ctID="Sparky Node Puppeteer" --serverURL=http://128.138.93.172/',
       script: 'grunt',
       exec_mode: 'cluster',
       instances: 75,