diff --git a/changelogs/unreleased/dz-namespace-id-not-null.yml b/changelogs/unreleased/dz-namespace-id-not-null.yml
new file mode 100644
index 0000000000000000000000000000000000000000..07b32aeeb86cd0be4a0b7d795d0b8bb1f187de5b
--- /dev/null
+++ b/changelogs/unreleased/dz-namespace-id-not-null.yml
@@ -0,0 +1,5 @@
+---
+title: Add NOT NULL constraint to projects.namespace_id
+merge_request: 17448
+author:
+type: other