diff --git a/frc971/control_loops/python/arm.py b/frc971/control_loops/python/arm.py
index f4a76a0..812a0c3 100755
--- a/frc971/control_loops/python/arm.py
+++ b/frc971/control_loops/python/arm.py
@@ -45,7 +45,7 @@
     self.J = self.r * self.mass
 
     # Arm left/right spring constant (N*m / radian)
-    self.spring = 400.0
+    self.spring = 100.0
 
     # State is [average position, average velocity,
     #           position difference/2, velocity difference/2]