diff --git a/requirements.txt b/requirements.txt
index d2f8218658c3ae9d7ff5a6276f06a02ae4280465..6e1a1e9e5c3d76c8584c6bbe3ed5b64ad61f4fe9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 duplicity==1.2.3
-b2sdk==1.33.0
+b2sdk==2.4.1
 paramiko==3.4.0