diff --git a/_constraints b/_constraints
new file mode 100644
index 0000000..f1b3630
--- /dev/null
+++ b/_constraints
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<constraints>
+  <hardware>
+    <memory>
+      <size unit="M">6000</size>
+    </memory>
+  </hardware>
+</constraints>
diff --git a/openexr.changes b/openexr.changes
index f82e039..584f8b9 100644
--- a/openexr.changes
+++ b/openexr.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sat Nov  5 11:16:42 UTC 2022 - Hans-Peter Jansen <hpj@urpla.net>
+
+- Add _constraints: 6000 MiB memory
+
 -------------------------------------------------------------------
 Mon May  2 10:20:57 UTC 2022 - Dirk Müller <dmueller@suse.com>