diff --git a/_constraints b/_constraints
index bff83ea..70acc38 100644
--- a/_constraints
+++ b/_constraints
@@ -4,4 +4,14 @@
       <size unit="G">8</size>
     </disk> 
   </hardware>
+  <overwrite>
+    <conditions>
+      <arch>riscv64</arch>
+    </conditions>
+    <hardware>
+      <physicalmemory>
+        <size unit="G">8</size>
+      </physicalmemory>
+    </hardware>
+  </overwrite>
 </constraints>