diff --git a/.changeset/good-chicken-brake.md b/.changeset/good-chicken-brake.md
new file mode 100644
index 000000000..7341ac512
--- /dev/null
+++ b/.changeset/good-chicken-brake.md
@@ -0,0 +1,5 @@
+---
+"@uppy/companion": patch
+---
+
+Fix bug with 429 not returning JSON response with message
diff --git a/packages/@uppy/companion/src/server/provider/error.js b/packages/@uppy/companion/src/server/provider/error.js
index 99cb6716b..ed37c9b18 100644
--- a/packages/@uppy/companion/src/server/provider/error.js
+++ b/packages/@uppy/companion/src/server/provider/error.js
@@ -86,7 +86,7 @@ function errorToResponse(err) {
 
     // @ts-ignore
     if (err.statusCode === 429) {
-      return { code: 429, message: err.message }
+      return { code: 429, json: { message: err.message } }
     }
 
     // @ts-ignore