diff --git a/Gemfile b/Gemfile
index 0e6cc1a..b0c9984 100644
--- a/Gemfile
+++ b/Gemfile
@@ -19,7 +19,7 @@ gem 'sdoc', '~> 0.4.1', group: :doc # bundle exec rake doc:rails generates the A
 gem 'gemnasium-parser'
 
 group :development do
-  gem 'better_errors', '~> 2.1.1'
+  gem 'better_errors', '~> 2.9.1'
   gem 'binding_of_caller', '~> 0.7.2'
   gem 'capistrano', '~> 3.4.0'
   gem 'capistrano-rails', '~> 1.1.3'
diff --git a/Gemfile.lock b/Gemfile.lock
index d0199de..5135f90 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -38,9 +38,9 @@ GEM
       tzinfo (~> 1.1)
     addressable (2.3.8)
     arel (6.0.2)
-    better_errors (2.1.1)
+    better_errors (2.9.1)
       coderay (>= 1.0.0)
-      erubis (>= 2.6.6)
+      erubi (>= 1.0.0)
       rack (>= 0.9.0)
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
@@ -59,7 +59,7 @@ GEM
       capistrano-bundler (~> 1.1)
     codemirror-rails (5.5)
       railties (>= 3.0, < 5)
-    coderay (1.1.0)
+    coderay (1.1.3)
     coffee-rails (4.1.0)
       coffee-script (>= 2.2.0)
       railties (>= 4.0.0, < 5.0)
@@ -75,6 +75,7 @@ GEM
     diff-lcs (1.2.5)
     domain_name (0.5.24)
       unf (>= 0.0.5, < 1.0.0)
+    erubi (1.10.0)
     erubis (2.7.0)
     execjs (2.5.2)
     foundation-rails (5.5.2.1)
@@ -124,7 +125,7 @@ GEM
     pygments.rb (0.6.3)
       posix-spawn (~> 0.3.6)
       yajl-ruby (~> 1.2.0)
-    rack (1.6.4)
+    rack (1.6.13)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.2.3)
@@ -225,7 +226,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  better_errors (~> 2.1.1)
+  better_errors (~> 2.9.1)
   binding_of_caller (~> 0.7.2)
   capistrano (~> 3.4.0)
   capistrano-rails (~> 1.1.3)