diff --git a/_constraints b/_constraints
index a295ba1..13036c9 100644
--- a/_constraints
+++ b/_constraints
@@ -35,6 +35,9 @@
       <physicalmemory>
         <size unit="G">8</size>
       </physicalmemory>
+      <disk>
+        <size unit="G">25</size>
+      </disk>
     </hardware>
   </overwrite>
 <!-- aarch64 is a time consuming build, try to use RAM -->