diff --git a/_constraints b/_constraints
new file mode 100644
index 0000000..5ab2e5a
--- /dev/null
+++ b/_constraints
@@ -0,0 +1,7 @@
+<constraints>
+  <hardware>
+    <memory>
+      <size unit="G">6</size>
+    </memory>
+  </hardware>
+</constraints>
diff --git a/libmlt.changes b/libmlt.changes
index ff3c3fe..0763558 100644
--- a/libmlt.changes
+++ b/libmlt.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sat Mar 18 17:18:53 UTC 2023 - Christophe Marin <christophe@krop.fr>
+
+- Add a _constraints file to fix oom issues when building mlt
+
 -------------------------------------------------------------------
 Mon Mar  6 21:05:37 UTC 2023 - Christophe Marin <christophe@krop.fr>