diff --git a/Gemfile.lock b/Gemfile.lock
index fefa97ac9..52ad91446 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -62,6 +62,7 @@ GEM
       net-ssh (>= 2.0.14)
       net-ssh-gateway (>= 1.1.0)
     coderay (1.1.0)
+    concurrent-ruby (1.1.10)
     crack (0.4.2)
       safe_yaml (~> 1.0.0)
     debug_inspector (0.0.2)
@@ -87,7 +88,8 @@ GEM
     httparty (0.13.1)
       json (~> 1.8)
       multi_xml (>= 0.5.2)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     json (1.8.2)
     kgio (2.9.2)
     loofah (2.0.2)