diff --git a/fxjs/gc/heap.cpp b/fxjs/gc/heap.cpp
index 45e3df7..7e486ec 100644
--- a/fxjs/gc/heap.cpp
+++ b/fxjs/gc/heap.cpp
@@ -77,9 +77,7 @@
           {},
           cppgc::Heap::StackSupport::kNoConservativeStackScan,
           cppgc::Heap::MarkingType::kAtomic,
-          // TODO(tsepez): switch to incremental sweeping when the issue
-          // in https://crbug.com/1156170 is resolved.
-          cppgc::Heap::SweepingType::kAtomic,
+          cppgc::Heap::SweepingType::kIncrementalAndConcurrent,
           {}});
   return FXGCScopedHeap(heap.release());
 }