diff --git a/setup.py b/setup.py
index 9d8ebb9..a50f1a6 100644
--- a/setup.py
+++ b/setup.py
@@ -11,5 +11,5 @@
 	zip_safe = False,
 	include_package_data = True,
 	packages=find_packages(),
-	requires=['dateutil','thumbor','boto']
-)
\ No newline at end of file
+	requires=['dateutil','thumbor','boto','botornado']
+)
diff --git a/thumbor_aws/loaders/s3_loader.py b/thumbor_aws/loaders/s3_loader.py
index 8b17abd..bdda8f4 100644
--- a/thumbor_aws/loaders/s3_loader.py
+++ b/thumbor_aws/loaders/s3_loader.py
@@ -1,7 +1,7 @@
 # coding: utf-8
 
-from boto.s3.connection import S3Connection
-from boto.s3.bucket import Bucket
+from botornado.s3.connection import AsyncS3Connection
+from botornado.s3.bucket import AsyncBucket
 from boto.s3.key import Key
 import urllib2
 
@@ -34,7 +34,7 @@ def _establish_connection(context_config):
     conn = connection
     if conn is None:
         # Store connection not bucket
-        conn = S3Connection(
+        conn = AsyncS3Connection(
             context_config.AWS_ACCESS_KEY,
             context_config.AWS_SECRET_KEY
         )
@@ -53,13 +53,15 @@ def load(context, url, callback):
 
     conn = _establish_connection(context.config)
 
-    bucket_loader = Bucket(
+    bucket_loader = AsyncBucket(
         connection=conn,
         name=bucket
     )
 
-    file_key = bucket_loader.get_key(url)
-    if not file_key:
-        return callback(None)
+    def key_callback(file_key):
+        if file_key:
+            file_key.read(callback=callback)
+        else:
+            callback(None)
 
-    return callback(file_key.read())
+    bucket_loader.get_key(url, callback=key_callback)