diff --git a/brick/model.sdf b/brick/model.sdf
index 34a7976..475a82f 100755
--- a/brick/model.sdf
+++ b/brick/model.sdf
@@ -28,8 +28,8 @@
               <mu>100</mu>
               <mu2>50</mu2>
               <fdir1>0 0 1</fdir1>
-              <slip1>2.0</slip1>
-              <slip2>2.0</slip2>
+              <slip1>1.0</slip1>
+              <slip2>1.0</slip2>
             </ode>
           </friction>
           <contact>