diff --git a/Gemfile.lock b/Gemfile.lock
index 6efeb49..6afff02 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -31,9 +31,10 @@ GEM
     addressable (2.3.3)
     arel (3.0.2)
     bcrypt-ruby (3.0.1)
-    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)
@@ -46,7 +47,7 @@ GEM
       xpath (~> 1.0.0)
     childprocess (0.3.9)
       ffi (~> 1.0, >= 1.0.11)
-    coderay (1.0.9)
+    coderay (1.1.3)
     coffee-rails (3.2.2)
       coffee-script (>= 2.2.0)
       railties (~> 3.2.0)
@@ -75,6 +76,7 @@ GEM
     email_spec (1.4.0)
       launchy (~> 2.1)
       mail (~> 2.2)
+    erubi (1.10.0)
     erubis (2.7.0)
     execjs (1.4.0)
       multi_json (~> 1.0)