diff --git a/Gemfile.lock b/Gemfile.lock
index 99f444f..3b07a02 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -29,13 +29,14 @@ 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)
     binding_of_caller (0.7.1)
       debug_inspector (>= 0.0.1)
     builder (3.0.4)
-    coderay (1.0.9)
+    coderay (1.1.3)
     coffee-rails (3.2.2)
       coffee-script (>= 2.2.0)
       railties (~> 3.2.0)
@@ -45,6 +46,7 @@ GEM
     coffee-script-source (1.6.2)
     commonjs (0.2.6)
     debug_inspector (0.0.2)
+    erubi (1.10.0)
     erubis (2.7.0)
     execjs (1.4.0)
       multi_json (~> 1.0)