diff --git a/Gemfile.lock b/Gemfile.lock
index 4da47e9..a27849d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,6 +1,10 @@
 GEM
-  remote: https://rubygems.org/
   remote: https://rails-assets.org/
+  specs:
+    rails-assets-tether (1.4.3)
+
+GEM
+  remote: https://rubygems.org/
   specs:
     actioncable (5.0.7.2)
       actionpack (= 5.0.7.2)
@@ -60,7 +64,7 @@ GEM
       nokogiri (~> 1.8, >= 1.8.2)
       rubyzip (~> 1.2, >= 1.2.1)
     bcrypt (3.1.12)
-    better_errors (2.5.1)
+    better_errors (2.8.0)
       coderay (>= 1.0.0)
       erubi (>= 1.0.0)
       rack (>= 0.9.0)
@@ -104,7 +108,7 @@ GEM
     case_transform (0.2)
       activesupport
     cliver (0.3.2)
-    coderay (1.1.2)
+    coderay (1.1.3)
     coffee-rails (4.2.2)
       coffee-script (>= 2.2.0)
       railties (>= 4.0.0)
@@ -135,7 +139,7 @@ GEM
       warden (~> 1.2.3)
     diff-lcs (1.3)
     docile (1.3.1)
-    erubi (1.8.0)
+    erubi (1.10.0)
     erubis (2.7.0)
     eventmachine (1.2.7)
     execjs (2.7.0)
@@ -257,7 +261,6 @@ GEM
       bundler (>= 1.3.0)
       railties (= 5.0.7.2)
       sprockets-rails (>= 2.0.0)
-    rails-assets-tether (1.4.3)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)