diff --git a/Resources/Prototypes/Entities/Mobs/Player/silicon.yml b/Resources/Prototypes/Entities/Mobs/Player/silicon.yml
index 7fb997aa71..9774493890 100644
--- a/Resources/Prototypes/Entities/Mobs/Player/silicon.yml
+++ b/Resources/Prototypes/Entities/Mobs/Player/silicon.yml
@@ -90,8 +90,8 @@
     fixtures:
     - shape:
         !type:PhysShapeCircle
-        radius: 0.25
-      mass: 5
+        radius: 0.35
+      mass: 20
       mask:
       - VaultImpassable
       layer: