diff --git a/brick/model.sdf b/brick/model.sdf
index 43ea7ad..c26e75b 100755
--- a/brick/model.sdf
+++ b/brick/model.sdf
@@ -5,7 +5,7 @@
       <pose frame=''>0 0 0 0 -0 0</pose>
       <inertial>
         <pose frame=''> 0 0 0.0 -0 0</pose>
-        <mass>0.5</mass>
+        <mass>0.7</mass>
         <inertia>
           <ixx>0.17</ixx>
           <ixy>0</ixy>