diff --git a/js/test.js b/js/test.js
index 3d8a4d6..7006561 100644
--- a/js/test.js
+++ b/js/test.js
@@ -88,8 +88,8 @@ var test_new = () => {
   // A test for the new, more general API. We start with some warm-up.
 
   // Pick either one.
-  // MLS.setCiphersuite("MLS_128_DHKEMX25519_AES128GCM_SHA256_Ed25519");
-  MLS.setCiphersuite("MLS_128_DHKEMX25519_CHACHA20POLY1305_SHA256_Ed25519");
+  MLS.setCiphersuite("MLS_128_DHKEMX25519_AES128GCM_SHA256_Ed25519");
+  // MLS.setCiphersuite("MLS_128_DHKEMX25519_CHACHA20POLY1305_SHA256_Ed25519");
 
   // The source of entropy is customizable.
   MLS.setEntropy((n) => crypto.getRandomValues(new Uint8Array(n)));