diff --git a/Gemfile b/Gemfile
index 40a9577..a43a7ef 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,6 +7,6 @@ gemspec
 group :development, :test do
   gem "rake",              require: false
   gem "rspec",   "~> 3.9", require: false
-  gem "rubocop", "0.79.0", require: false
+  gem "rubocop", "0.80.1", require: false
   gem "tjson",   "~> 0.5", require: false
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 7aced0a..fdba996 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,10 +11,11 @@ GEM
     diff-lcs (1.3)
     jaro_winkler (1.5.4)
     parallel (1.19.1)
-    parser (2.7.0.1)
+    parser (2.7.0.3)
       ast (~> 2.4.0)
     rainbow (3.0.0)
     rake (13.0.1)
+    rexml (3.2.4)
     rspec (3.9.0)
       rspec-core (~> 3.9.0)
       rspec-expectations (~> 3.9.0)
@@ -28,17 +29,18 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.9.0)
     rspec-support (3.9.0)
-    rubocop (0.79.0)
+    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 (>= 1.4.0, < 1.7)
     ruby-progressbar (1.10.1)
     tjson (0.5.0)
       base32 (>= 0.3)
-    unicode-display_width (1.6.0)
+    unicode-display_width (1.6.1)
 
 PLATFORMS
   ruby
@@ -48,7 +50,7 @@ DEPENDENCIES
   cryptouri!
   rake
   rspec (~> 3.9)
-  rubocop (= 0.79.0)
+  rubocop (= 0.80.1)
   tjson (~> 0.5)
 
 BUNDLED WITH