diff --git a/runtime/js-compute-runtime/js-compute-runtime.cpp b/runtime/js-compute-runtime/js-compute-runtime.cpp
index c87934355a..5282649790 100644
--- a/runtime/js-compute-runtime/js-compute-runtime.cpp
+++ b/runtime/js-compute-runtime/js-compute-runtime.cpp
@@ -134,8 +134,7 @@ bool init_js() {
 
   // TODO: check if we should set a different creation zone.
   JS::RealmOptions options;
-  options.creationOptions().setStreamsEnabled(true).setWeakRefsEnabled(
-      JS::WeakRefSpecifier::EnabledWithoutCleanupSome);
+  options.creationOptions().setStreamsEnabled(true);
 
   JS::DisableIncrementalGC(cx);
   // JS_SetGCParameter(cx, JSGC_MAX_EMPTY_CHUNK_COUNT, 1);
diff --git a/runtime/spidermonkey/gecko-dev b/runtime/spidermonkey/gecko-dev
index 7490bfd7fc..ae40fe5a7d 160000
--- a/runtime/spidermonkey/gecko-dev
+++ b/runtime/spidermonkey/gecko-dev
@@ -1 +1 @@
-Subproject commit 7490bfd7fc8adcea000eefb448044db3e08e339d
+Subproject commit ae40fe5a7d0fa6a430dba2015ec7aa9c855434c1