diff --git a/Gemfile.lock b/Gemfile.lock
index 1a407ee12..e48d1ca70 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -39,6 +39,7 @@ GEM
     childprocess (0.5.3)
       ffi (~> 1.0, >= 1.0.11)
     coderay (1.1.0)
+    concurrent-ruby (1.1.10)
     dotenv (0.11.1)
       dotenv-deployment (~> 0.0.2)
     dotenv-deployment (0.0.2)
@@ -48,7 +49,8 @@ GEM
     fastercsv (1.5.5)
     ffi (1.9.3)
     hike (1.2.3)
-    i18n (0.6.11)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     journey (1.0.4)
     jquery-rails (2.0.3)
       railties (>= 3.1.0, < 5.0)