diff --git a/quic/core/quic_flags_list.h b/quic/core/quic_flags_list.h
index 63f0625..a6c2288 100644
--- a/quic/core/quic_flags_list.h
+++ b/quic/core/quic_flags_list.h
@@ -23,7 +23,7 @@
 QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_default_to_bbr, false)
 QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_default_to_bbr_v2, false)
 QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_delay_initial_ack, true)
-QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_deprecate_http2_priority_experiment, false)
+QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_deprecate_http2_priority_experiment, true)
 QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_disable_server_blackhole_detection, false)
 QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_disable_version_draft_29, false)
 QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_disable_version_q043, false)