diff --git a/Gemfile.lock b/Gemfile.lock
index b91fa01..5d09699 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -85,7 +85,7 @@ GEM
       babel-source (>= 4.0, < 6)
       execjs (~> 2.0)
     bcrypt (3.1.18)
-    better_errors (2.4.0)
+    better_errors (2.8.0)
       coderay (>= 1.0.0)
       erubi (>= 1.0.0)
       rack (>= 0.9.0)
@@ -110,7 +110,7 @@ GEM
       xpath (~> 3.2)
     childprocess (4.1.0)
     climate_control (1.0.0)
-    coderay (1.1.2)
+    coderay (1.1.3)
     coffee-rails (4.2.2)
       coffee-script (>= 2.2.0)
       railties (>= 4.0.0)
@@ -397,6 +397,7 @@ DEPENDENCIES
   bootstrap-sass (>= 3.4.1)
   bootstrap-tagsinput-rails
   bson_ext
+  bundler (~> 1.15)
   byebug
   capybara (= 3.18.0)
   climate_control