diff --git a/Gemfile.lock b/Gemfile.lock
index 7caa583..80ce694 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -29,9 +29,10 @@ GEM
       i18n (= 0.6.1)
       multi_json (~> 1.0)
     arel (3.0.2)
-    better_errors (0.8.0)
+    better_errors (2.8.0)
       coderay (>= 1.0.0)
-      erubis (>= 2.6.6)
+      erubi (>= 1.0.0)
+      rack (>= 0.9.0)
     builder (3.0.4)
     bullet (4.6.0)
       uniform_notifier
@@ -46,6 +47,7 @@ GEM
     commonjs (0.2.6)
     diff-lcs (1.2.4)
     ejs (1.0.0)
+    erubi (1.10.0)
     erubis (2.7.0)
     execjs (1.4.0)
       multi_json (~> 1.0)