diff --git a/Gemfile.lock b/Gemfile.lock
index bd7561657b0..db7aeb7c93c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -209,7 +209,8 @@ GEM
     mocha (2.2.0)
       ruby2_keywords (>= 0.0.5)
     msgpack (1.7.2)
-    multi_xml (0.6.0)
+    multi_xml (0.7.1)
+      bigdecimal (~> 3.1)
     multipart-post (2.4.0)
     mutex_m (0.2.0)
     net-imap (0.4.10)