diff --git a/.rubocop.yml b/.rubocop.yml
index dea8886..764dd32 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -10,9 +10,6 @@ Layout/EndOfLine:
 Layout/IndentHeredoc:
   Enabled: false
 
-Lint/SplatKeywordArguments:
-  Enabled: false
-
 Metrics/AbcSize:
   Enabled: false
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 4bc62f8..a46cd5f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,11 +13,12 @@ GEM
     docile (1.3.0)
     elftools (1.0.1)
       bindata (~> 2)
+    jaro_winkler (1.5.1)
     json (2.1.0)
     parallel (1.12.1)
-    parser (2.5.1.0)
+    parser (2.5.1.2)
       ast (~> 2.4.0)
-    powerpack (0.1.1)
+    powerpack (0.1.2)
     rainbow (3.0.0)
     rake (12.3.1)
     rspec (3.8.0)
@@ -33,20 +34,21 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.8.0)
     rspec-support (3.8.0)
-    rubocop (0.56.0)
+    rubocop (0.58.2)
+      jaro_winkler (~> 1.5.1)
       parallel (~> 1.10)
-      parser (>= 2.5)
+      parser (>= 2.5, != 2.5.1.1)
       powerpack (~> 0.1)
       rainbow (>= 2.2.2, < 4.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (~> 1.0, >= 1.0.1)
-    ruby-progressbar (1.9.0)
+    ruby-progressbar (1.10.0)
     simplecov (0.16.1)
       docile (~> 1.1)
       json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
     simplecov-html (0.10.2)
-    unicode-display_width (1.3.2)
+    unicode-display_width (1.4.0)
     yard (0.9.16)
 
 PLATFORMS
@@ -56,7 +58,7 @@ DEPENDENCIES
   one_gadget!
   rake (~> 12.3)
   rspec (~> 3.7)
-  rubocop (~> 0.55)
+  rubocop (~> 0.58)
   simplecov (~> 0.16.1)
   yard (~> 0.9)
 
diff --git a/one_gadget.gemspec b/one_gadget.gemspec
index 84b1601..d131827 100644
--- a/one_gadget.gemspec
+++ b/one_gadget.gemspec
@@ -30,7 +30,7 @@ Gem::Specification.new do |s|
 
   s.add_development_dependency 'rake', '~> 12.3'
   s.add_development_dependency 'rspec', '~> 3.7'
-  s.add_development_dependency 'rubocop', '~> 0.55'
+  s.add_development_dependency 'rubocop', '~> 0.58'
   s.add_development_dependency 'simplecov', '~> 0.16.1'
   s.add_development_dependency 'yard', '~> 0.9'
 end
diff --git a/spec/emulators/i386_spec.rb b/spec/emulators/i386_spec.rb
index b2bfb2b..c0be142 100644
--- a/spec/emulators/i386_spec.rb
+++ b/spec/emulators/i386_spec.rb
@@ -36,7 +36,7 @@ describe OneGadget::Emulators::I386 do
    5ef46:       8d 86 9f a0 fa ff       lea    eax,[esi-0x55f61]
    5ef4c:       50                      push   eax
    5ef4d:       e8 be 07 05 00          call   af710 <execl@@GLIBC_2.0>
-    EOS
+      EOS
       gadget.each_line { |s| @processor.process(s) }
       expect(@processor.registers['esp'].to_s).to eq 'esp-0xc'
       expect(@processor.stack[-0xc].to_s).to eq 'esi-0x55f61'