diff --git a/dobot_description/urdf/cr5_robot.urdf b/dobot_description/urdf/cr5_robot.urdf
index 6ba7a4a..1913116 100755
--- a/dobot_description/urdf/cr5_robot.urdf
+++ b/dobot_description/urdf/cr5_robot.urdf
@@ -75,7 +75,7 @@
     <parent link="base_link" />
     <child link="Link1" />
     <axis xyz="0 0 1" />
-    <limit lower="-3.14" upper="3.14" effort="0" velocity="0" />
+    <limit lower="0" upper="6.28" effort="0" velocity="0" />
   </joint>
 
   <link name="Link2">