diff --git a/_constraints b/_constraints
index c768be9..597fa88 100644
--- a/_constraints
+++ b/_constraints
@@ -3,16 +3,12 @@
     <disk>
       <size unit="G">5</size>
     </disk>
+    <memory>
+      <size unit="M">4000</size>
+    </memory>
+    <memoryperjob>
+      <size unit="M">800</size>
+    </memoryperjob>
   </hardware>
-  <overwrite>
-    <conditions>
-      <arch>ppc64le</arch>
-    </conditions>
-    <hardware>
-      <physicalmemory>
-        <size unit="M">4800</size>
-      </physicalmemory>
-    </hardware>
-  </overwrite>
 </constraints>
 
diff --git a/inkscape.changes b/inkscape.changes
index c68ac80..d6466f3 100644
--- a/inkscape.changes
+++ b/inkscape.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Fri Oct  2 23:17:32 UTC 2020 - Stefan Brüns <stefan.bruens@rwth-aachen.de>
+
+- Clean up constraints:
+  * Remove ppc64le specific memory bound, use global 4GB limit.
+  * Add memoryperjob constraint, some ppc64{,le} workers have
+    a high core-to-memory ratio.
+
 -------------------------------------------------------------------
 Tue Sep  8 11:58:49 UTC 2020 - Alexei Sorokin <sor.alexei@meowr.ru>