diff --git a/_constraints b/_constraints
index b9a8f12..cb5136d 100644
--- a/_constraints
+++ b/_constraints
@@ -2,7 +2,7 @@
 <constraints>
   <hardware>
     <physicalmemory>
-      <size unit="G">4</size>
+      <size unit="G">6</size>
     </physicalmemory>
     <disk>
       <size unit="G">5</size>