diff --git a/lib/index.js b/lib/index.js
index 9060571..b1d5e38 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -370,6 +370,8 @@ class Instagram {
     if (isUrl(photo)) {
       // Enconding: null is required, only this way a Buffer is returned
       file = await request.get({ url: photo, encoding: null })
+    } else if (Buffer.isBuffer(photo)) {
+      file = await photo
     } else {
       file = await fs.readFileSync(photo)
     }