diff --git a/autoware_launch/config/planning/scenario_planning/lane_driving/behavior_planning/behavior_path_planner/lane_change/lane_change.param.yaml b/autoware_launch/config/planning/scenario_planning/lane_driving/behavior_planning/behavior_path_planner/lane_change/lane_change.param.yaml
index ec12b836e3..c54a67cb57 100644
--- a/autoware_launch/config/planning/scenario_planning/lane_driving/behavior_planning/behavior_path_planner/lane_change/lane_change.param.yaml
+++ b/autoware_launch/config/planning/scenario_planning/lane_driving/behavior_planning/behavior_path_planner/lane_change/lane_change.param.yaml
@@ -3,7 +3,7 @@
     lane_change:
       prepare_duration: 4.0         # [s]
 
-      minimum_prepare_length: 2.0 # [m]
+      minimum_prepare_length: 10.0 # [m]
       minimum_lane_changing_length: 16.5          # [m]
       backward_length_buffer_for_end_of_lane: 3.0 # [m]
       lane_change_finish_judge_buffer: 2.0      # [m]