diff --git a/.changeset/beige-schools-horse.md b/.changeset/beige-schools-horse.md
new file mode 100644
index 00000000..58e598da
--- /dev/null
+++ b/.changeset/beige-schools-horse.md
@@ -0,0 +1,5 @@
+---
+"@primer/react": patch
+---
+
+Add `bg` prop to `ProgressBar.Item`
diff --git a/src/rules/no-system-props.js b/src/rules/no-system-props.js
index 83cb111b..393d37f9 100644
--- a/src/rules/no-system-props.js
+++ b/src/rules/no-system-props.js
@@ -44,6 +44,7 @@ const excludedComponentProps = new Map([
   ['PageLayout.Pane', new Set(['padding', 'position', 'width'])],
   ['PageLayout.Content', new Set(['padding', 'width'])],
   ['ProgressBar', new Set(['bg'])],
+  ['ProgressBar.Item', new Set(['bg'])],
   ['PointerBox', new Set(['bg'])],
   ['Truncate', new Set(['maxWidth'])],
   ['Stack', new Set(['padding', 'gap'])],