diff --git a/.changeset/hungry-peas-sing.md b/.changeset/hungry-peas-sing.md
new file mode 100644
index 0000000000..8c39d33ddd
--- /dev/null
+++ b/.changeset/hungry-peas-sing.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-catalog-backend-module-openapi': patch
+---
+
+Fixed bug in `jsonSchemaRefPlaceholderResolver` where relative $ref files were resolved through file system instead of base URL of file