diff --git a/Gemfile.lock b/Gemfile.lock
index 34536d18..b8e5bbb3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -191,7 +191,7 @@ GEM
     mini_mime (1.1.5)
     mini_portile2 (2.8.9)
     minitest (5.24.1)
-    msgpack (1.7.2)
+    msgpack (1.8.2)
     mutex_m (0.2.0)
     net-imap (0.4.14)
       date