diff --git a/action.js b/action.js
index 1cd34aa..9ea616f 100644
--- a/action.js
+++ b/action.js
@@ -54,8 +54,11 @@ readdirSync(".")
   });
 
 // Add package.json to repo
-await sendFile(`package.json`, {
-  urls: packageJsonUrls,
-  deps: [],
-  version: version,
-});
+await sendFile(
+  `package.json`,
+  JSON.stringify({
+    urls: packageJsonUrls,
+    deps: [],
+    version: version,
+  }),
+);