diff --git a/src/core/lib/experiments/experiments.yaml b/src/core/lib/experiments/experiments.yaml
index db570744011..f7417410509 100644
--- a/src/core/lib/experiments/experiments.yaml
+++ b/src/core/lib/experiments/experiments.yaml
@@ -205,6 +205,6 @@
     Have the work serializer dispatch work to event engine for every callback,
     instead of running things inline in the first thread that successfully
     enqueues work.
-  expiry: 2024/06/30
+  expiry: 2024/09/30
   owner: ysseung@google.com
   test_tags: ["core_end2end_test", "cpp_end2end_test", "xds_end2end_test", "lb_unit_test"]