diff --git a/Gemfile.lock b/Gemfile.lock
index 3bb6be87..892872b9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -23,6 +23,7 @@ GEM
       execjs
     coffee-script-source (1.1.2)
     colorize (0.5.8)
+    concurrent-ruby (1.1.10)
     daemons (1.1.4)
     dedent (0.0.2)
     diff-lcs (1.1.3)
@@ -36,7 +37,8 @@ GEM
       rake-remote_task (~> 2.0.2)
     foreman (0.41.0)
       thor (>= 0.13.6)
-    i18n (0.6.0)
+    i18n (1.10.0)
+      concurrent-ruby (~> 1.0)
     json (1.5.3)
     kgio (2.7.4)
     libv8 (3.16.14.7)