diff --git a/Gemfile.lock b/Gemfile.lock
index bc8eb01..85dfe3d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -12,7 +12,8 @@ GEM
     concurrent-ruby (1.0.2)
     concurrent-ruby-edge (0.2.2)
       concurrent-ruby (~> 1.0.2)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     json (1.8.6)
     minitest (5.9.1)
     thread_safe (0.3.5)