diff --git a/web/Gemfile.lock b/web/Gemfile.lock
index 34a940e..b1343c5 100644
--- a/web/Gemfile.lock
+++ b/web/Gemfile.lock
@@ -56,12 +56,14 @@ GEM
       execjs
     coffee-script-source (1.9.1.1)
     columnize (0.9.0)
+    concurrent-ruby (1.1.10)
     debug_inspector (0.0.2)
     erubis (2.7.0)
     execjs (2.5.2)
     globalid (0.3.5)
       activesupport (>= 4.1.0)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jbuilder (2.3.1)
       activesupport (>= 3.0.0, < 5)
       multi_json (~> 1.2)