diff --git a/_constraints b/_constraints
index ceffc91..bcf2770 100644
--- a/_constraints
+++ b/_constraints
@@ -1,7 +1,7 @@
 <constraints>
   <hardware>
     <memory>
-     <size unit="G">16</size>
+     <size unit="G">20</size>
     </memory>
     <disk>
       <size unit="G">35</size>