diff --git a/Gemfile.lock b/Gemfile.lock
index 9449b25..e64f38f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,7 +9,7 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    ast (2.3.0)
+    ast (2.4.0)
     awesome_print (1.7.0)
     coveralls (0.8.16)
       json (>= 1.8, < 3)
@@ -22,13 +22,15 @@ GEM
     docile (1.1.5)
     httparty (0.14.0)
       multi_xml (>= 0.5.2)
+    jaro_winkler (1.5.4)
     json (2.0.2)
     multi_xml (0.5.5)
-    parser (2.3.2.0)
-      ast (~> 2.2)
-    powerpack (0.1.1)
-    rainbow (2.1.0)
+    parallel (1.19.1)
+    parser (2.7.0.5)
+      ast (~> 2.4.0)
+    rainbow (3.0.0)
     rake (11.3.0)
+    rexml (3.2.4)
     rspec (3.5.0)
       rspec-core (~> 3.5.0)
       rspec-expectations (~> 3.5.0)
@@ -42,13 +44,15 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.5.0)
     rspec-support (3.5.0)
-    rubocop (0.45.0)
-      parser (>= 2.3.1.1, < 3.0)
-      powerpack (~> 0.1)
-      rainbow (>= 1.99.1, < 3.0)
+    rubocop (0.80.1)
+      jaro_winkler (~> 1.5.1)
+      parallel (~> 1.10)
+      parser (>= 2.7.0.1)
+      rainbow (>= 2.2.2, < 4.0)
+      rexml
       ruby-progressbar (~> 1.7)
-      unicode-display_width (~> 1.0, >= 1.0.1)
-    ruby-progressbar (1.8.1)
+      unicode-display_width (>= 1.4.0, < 1.7)
+    ruby-progressbar (1.10.1)
     simplecov (0.12.0)
       docile (~> 1.1.0)
       json (>= 1.8, < 3)
@@ -58,7 +62,7 @@ GEM
       tins (~> 1.0)
     thor (0.19.4)
     tins (1.13.0)
-    unicode-display_width (1.1.1)
+    unicode-display_width (1.6.1)
 
 PLATFORMS
   ruby