diff --git a/_constraints b/_constraints
index 2274919..e0d6b27 100644
--- a/_constraints
+++ b/_constraints
@@ -25,5 +25,15 @@
       </memory>
     </hardware>
   </overwrite>
+  <overwrite>
+    <conditions>
+      <arch>s390x</arch>
+    </conditions>
+    <hardware>
+      <memory>
+    <size unit="G">28</size>
+      </memory>
+    </hardware>
+  </overwrite>
 </constraints>
 
diff --git a/python-uv.changes b/python-uv.changes
index 0b8b07f..e78efa7 100644
--- a/python-uv.changes
+++ b/python-uv.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sat May 10 16:36:30 UTC 2025 - Christian Boltz <suse-beta@cboltz.de>
+
+- build needs 28G memory on s390x - adjust _constraints
+
 -------------------------------------------------------------------
 Fri May  9 10:59:10 UTC 2025 - Ondřej Súkup <mimi.vx@gmail.com>