diff --git a/config/adc_rosnav/local_planner/ackermann_params.yaml b/config/adc_rosnav/local_planner/ackermann_params.yaml
index 46cc01c82005b80c5f1f8bc756eec0b31ae7b911..ca377f454e4926fbcf423553b08d75f44fb1aa52 100644
--- a/config/adc_rosnav/local_planner/ackermann_params.yaml
+++ b/config/adc_rosnav/local_planner/ackermann_params.yaml
@@ -33,8 +33,8 @@ AckermannPlannerROS:
   max_trans_vel: 1.0
   min_trans_vel: -1.0
   max_trans_acc: 0.2
-  max_steer_angle: 0.4
-  min_steer_angle: -0.4
+  max_steer_angle: 0.42
+  min_steer_angle: -0.42
   max_steer_vel: 0.3
   min_steer_vel: -0.3
   max_steer_acc: 1.0