diff --git a/Gemfile.lock b/Gemfile.lock
index e239b6bd21..161d820318 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -465,7 +465,7 @@ GEM
       rake
     launchy (2.4.3)
       addressable (~> 2.3)
-    letter_opener (1.4.1)
+    letter_opener (1.6.0)
       launchy (~> 2.2)
     libv8 (3.16.14.11)
     listen (3.0.8)