diff --git a/.changeset/young-pigs-beg.md b/.changeset/young-pigs-beg.md
new file mode 100644
index 0000000000..bbbc7b0f74
--- /dev/null
+++ b/.changeset/young-pigs-beg.md
@@ -0,0 +1,5 @@
+---
+'@backstage/core-components': patch
+---
+
+Add custom styles for scrollbar of sidebar items wrapper to fix flaky behavior