diff --git a/crates/js/src/vm.rs b/crates/js/src/vm.rs
index eee3a41..3bf67be 100644
--- a/crates/js/src/vm.rs
+++ b/crates/js/src/vm.rs
@@ -1995,6 +1995,13 @@ impl Vm {
         if let Some(r) = self.promise_prototype {
             roots.push(r);
         }
+        // DOM wrapper identity cache: keep cached wrappers alive so that the
+        // same DOM node always returns the same JS object.
+        if let Some(bridge) = &self.dom_bridge {
+            for &wrapper_ref in bridge.node_wrappers.borrow().values() {
+                roots.push(wrapper_ref);
+            }
+        }
         roots
     }