diff --git a/.changeset/sour-comics-attend.md b/.changeset/sour-comics-attend.md
new file mode 100644
index 0000000000..729fc59ba7
--- /dev/null
+++ b/.changeset/sour-comics-attend.md
@@ -0,0 +1,5 @@
+---
+'@backstage/backend-defaults': patch
+---
+
+Add configuration variable for `express` trust proxy setting