diff --git a/package.json b/package.json
index 2893faa..ddd1ebb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@umbrellio/ucdn",
-  "version": "0.4.0",
+  "version": "0.4.1",
   "bin": "ucdn",
   "main": "index.js",
   "repository": "git@github.com:umbrellio/ucdn.git",
diff --git a/upload.js b/upload.js
index 7ff564c..bf1820e 100755
--- a/upload.js
+++ b/upload.js
@@ -29,23 +29,15 @@ const findFiles = directory => {
 
 const getKey = (file, root) => path.relative(root, file)
 
-const uploadFile = (s3, config, file, key) => new Promise((resolve, reject) => {
-  const { bucket } = config
-  const stream = fs.createReadStream(file)
-  const basename = path.basename(file)
-  const params = {
-    Bucket: bucket,
-    Body: stream,
-    Key: key,
-    ContentType: mime.contentType(basename),
-  }
-
-  stream.on("error", reject)
-  s3.send(new PutObjectCommand(params))
-    .then(data => resolve(data))
-    .catch(err => reject(err))
-    .finally(() => stream.close())
-})
+const uploadFile = (s3, config, file, key) => {
+  return fs.promises.readFile(file).then(data => {
+    const { bucket } = config
+    const basename = path.basename(file)
+    const contentType = mime.contentType(basename)
+    const params = { Bucket: bucket, Body: data, Key: key, ContentType: contentType }
+    return s3.send(new PutObjectCommand(params))
+  })
+}
 
 const upload = argv => {
   const config = getConfig(argv)