diff --git a/Assets/Prefab/worker.prefab b/Assets/Prefab/worker.prefab
index d1e68c36f1ae11f706c01dc9300927968746b93d..50fc2c71694839adb83fbf2b98f61ae9f7d329ee 100644
--- a/Assets/Prefab/worker.prefab
+++ b/Assets/Prefab/worker.prefab
@@ -14,7 +14,7 @@ GameObject:
   - component: {fileID: 548039319383633029}
   - component: {fileID: 548039319383633028}
   - component: {fileID: 548039319383633031}
-  m_Layer: 0
+  m_Layer: 8
   m_Name: worker
   m_TagString: Untagged
   m_Icon: {fileID: 0}
@@ -175,4 +175,4 @@ Rigidbody2D:
   m_Interpolate: 0
   m_SleepingMode: 1
   m_CollisionDetection: 0
-  m_Constraints: 0
+  m_Constraints: 4