diff --git a/Gemfile.lock b/Gemfile.lock
index a29acf80f8c30b39da648009a3d99d40039a282e..4cb841e0c7484f277cfa25159d6a9dadded9f855 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,13 +1,13 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (5.1.2)
+    activesupport (5.1.4)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (~> 0.7)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.5.1)
-      public_suffix (~> 2.0, >= 2.0.2)
+    addressable (2.5.2)
+      public_suffix (>= 2.0.2, < 4.0)
     ast (2.3.0)
     coderay (1.1.1)
     concurrent-ruby (1.0.5)
@@ -38,9 +38,10 @@ GEM
     guard-rubocop (1.3.0)
       guard (~> 2.0)
       rubocop (~> 0.20)
-    hashdiff (0.3.4)
-    i18n (0.8.6)
-    json (2.0.3)
+    hashdiff (0.3.7)
+    i18n (0.9.1)
+      concurrent-ruby (~> 1.0)
+    json (2.1.0)
     listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
@@ -60,26 +61,26 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    public_suffix (2.0.5)
+    public_suffix (3.0.1)
     rainbow (2.2.2)
       rake
     rake (12.0.0)
     rb-fsevent (0.10.2)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
-    rspec (3.6.0)
-      rspec-core (~> 3.6.0)
-      rspec-expectations (~> 3.6.0)
-      rspec-mocks (~> 3.6.0)
-    rspec-core (3.6.0)
-      rspec-support (~> 3.6.0)
-    rspec-expectations (3.6.0)
+    rspec (3.7.0)
+      rspec-core (~> 3.7.0)
+      rspec-expectations (~> 3.7.0)
+      rspec-mocks (~> 3.7.0)
+    rspec-core (3.7.0)
+      rspec-support (~> 3.7.0)
+    rspec-expectations (3.7.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.6.0)
-    rspec-mocks (3.6.0)
+      rspec-support (~> 3.7.0)
+    rspec-mocks (3.7.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.6.0)
-    rspec-support (3.6.0)
+      rspec-support (~> 3.7.0)
+    rspec-support (3.7.0)
     rubocop (0.49.1)
       parallel (~> 1.10)
       parser (>= 2.3.3.1, < 3.0)
@@ -91,18 +92,18 @@ GEM
     ruby_dep (1.5.0)
     safe_yaml (1.0.4)
     shellany (0.0.1)
-    simplecov (0.14.1)
+    simplecov (0.15.1)
       docile (~> 1.1.0)
       json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
-    simplecov-html (0.10.1)
+    simplecov-html (0.10.2)
     slop (3.6.0)
     thor (0.19.4)
     thread_safe (0.3.6)
-    tzinfo (1.2.3)
+    tzinfo (1.2.4)
       thread_safe (~> 0.1)
     unicode-display_width (1.3.0)
-    webmock (3.0.1)
+    webmock (3.1.1)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff