diff --git a/Gemfile.lock b/Gemfile.lock
index 1aefdba..fd7c546 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,8 +11,10 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
+    concurrent-ruby (1.1.10)
     exifr (1.1.3)
-    i18n (0.6.1)
+    i18n (1.10.0)
+      concurrent-ruby (~> 1.0)
     json (1.7.5)
     mail (2.4.4)
       i18n (>= 0.4.0)