diff --git a/_constraints b/_constraints
index 4de687b..3ee521b 100644
--- a/_constraints
+++ b/_constraints
@@ -9,9 +9,9 @@
       <arch>riscv64</arch>
     </conditions>
     <hardware>
-      <physicalmemory>
-        <size unit="G">16</size>
-      </physicalmemory>
+      <memory>
+        <size unit="G">8</size>
+      </memory>
     </hardware>
   </overwrite>
 </constraints>
diff --git a/ghc-bootstrap.changes b/ghc-bootstrap.changes
index a81af63..a3bab5a 100644
--- a/ghc-bootstrap.changes
+++ b/ghc-bootstrap.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sat May 27 09:53:22 UTC 2023 - Andreas Schwab <schwab@suse.de>
+
+- Update constraints for riscv64
+
 -------------------------------------------------------------------
 Mon Apr 24 11:06:22 UTC 2023 - Andreas Schwab <schwab@suse.de>