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 fe8915c784..27349f077d 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
@@ -11,7 +11,8 @@
 
       # trajectory generation
       trajectory:
-        prepare_duration: 4.0
+        max_prepare_duration: 4.0
+        min_prepare_duration: 2.0
         lateral_jerk: 0.5
         min_longitudinal_acc: -1.0
         max_longitudinal_acc: 1.0
@@ -20,6 +21,7 @@
         min_lane_changing_velocity: 2.78
         lon_acc_sampling_num: 5
         lat_acc_sampling_num: 3
+        lane_changing_decel_factor: 0.5
 
       # delay lane change
       delay_lane_change: