diff --git a/Gemfile.lock b/Gemfile.lock
index adbdbccf..58636b4c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -315,7 +315,7 @@ GEM
       net-protocol
     net-protocol (0.2.2)
       timeout
-    net-smtp (0.4.0.1)
+    net-smtp (0.5.0)
       net-protocol
     netrc (0.11.0)
     next_rails (1.3.0)