diff --git a/spec/dummy/sandbox/Gemfile b/spec/dummy/sandbox/Gemfile
index bbc883c..dbd2da2 100644
--- a/spec/dummy/sandbox/Gemfile
+++ b/spec/dummy/sandbox/Gemfile
@@ -4,4 +4,4 @@ source 'https://rubygems.org'
 
 gem 'json'
 gem 'multi_json', '~> 1.8.1'
-gem 'i18n', '~> 0.6.5'
+gem 'i18n', '~> 0.6.8'
diff --git a/spec/dummy/sandbox/Gemfile.lock b/spec/dummy/sandbox/Gemfile.lock
index f3127e7..1f3d583 100644
--- a/spec/dummy/sandbox/Gemfile.lock
+++ b/spec/dummy/sandbox/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    i18n (0.6.5)
+    i18n (0.6.8)
     json (1.8.0)
     json (1.8.0-java)
     multi_json (1.8.1)
@@ -11,6 +11,6 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  i18n (~> 0.6.5)
+  i18n (~> 0.6.8)
   json
   multi_json (~> 1.8.1)