diff --git a/.rubocop.yml b/.rubocop.yml
index c41ec99..4f21afe 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -1,6 +1,6 @@
 inherit_from: .rubocop_todo.yml
 AllCops:
-  TargetRubyVersion: 2.4
+  TargetRubyVersion: 2.5
   
 Naming/FileName:
   Exclude:
@@ -12,7 +12,7 @@ Style/Encoding:
 Layout/EndOfLine:
   Enabled: false
 
-Metrics/LineLength:
+Layout/LineLength:
   Max: 120
 
 Metrics/AbcSize:
diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 3ed2815..d36de0d 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -1,65 +1,81 @@
-# This configuration was generated by
-# `rubocop --auto-gen-config`
-# on 2017-12-12 22:48:53 +0100 using RuboCop version 0.52.0.
-# The point is for the user to remove these configuration records
-# one by one as the offenses are removed from the code base.
-# Note that changes in the inspected code, or installation of new
-# versions of RuboCop, may require this file to be generated again.
-
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle.
-# SupportedStyles: auto_detection, squiggly, active_support, powerpack, unindent
-Layout/IndentHeredoc:
-  Exclude:
-    - 'spec/matchers.rb'
-
-# Offense count: 6
-# Configuration parameters: CountComments, ExcludedMethods.
-Metrics/BlockLength:
-  Max: 185
-
-# Offense count: 3
-# Configuration parameters: AllowHeredoc, AllowURI, URISchemes, IgnoreCopDirectives, IgnoredPatterns.
-# URISchemes: http, https
-Metrics/LineLength:
-  Max: 106
-
-# Offense count: 4
-# Configuration parameters: Blacklist.
-# Blacklist: END, (?-mix:EO[A-Z]{1})
-Naming/HeredocDelimiterNaming:
-  Exclude:
-    - 'lib/winrm-fs/core/file_transporter.rb'
-    - 'spec/matchers.rb'
-    - 'winrm-fs.gemspec'
-
-# Offense count: 1
-# Configuration parameters: .
-# SupportedStyles: annotated, template, unannotated
-Style/FormatStringToken:
-  EnforcedStyle: unannotated
-
-# Offense count: 4
-# Cop supports --auto-correct.
-# Configuration parameters: AutoCorrect, EnforcedStyle.
-# SupportedStyles: predicate, comparison
-Style/NumericPredicate:
-  Exclude:
-    - 'spec/**/*'
-    - 'lib/winrm-fs/core/file_transporter.rb'
-    - 'lib/winrm-fs/file_manager.rb'
-
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle, AllowInnerSlashes.
-# SupportedStyles: slashes, percent_r, mixed
-Style/RegexpLiteral:
-  Exclude:
-    - 'lib/winrm-fs/core/tmp_zip.rb'
-
-# Offense count: 3
-# Configuration parameters: AllowHeredoc, AllowURI, URISchemes, IgnoreCopDirectives, IgnoredPatterns.
-# URISchemes: http, https
-Metrics/LineLength:
-  Max: 106
+# This configuration was generated by
+# `rubocop --auto-gen-config`
+# on 2022-04-11 14:17:10 UTC using RuboCop version 1.26.1.
+# The point is for the user to remove these configuration records
+# one by one as the offenses are removed from the code base.
+# Note that changes in the inspected code, or installation of new
+# versions of RuboCop, may require this file to be generated again.
+
+# Offense count: 1
+# This cop supports safe auto-correction (--auto-correct).
+Layout/HeredocIndentation:
+  Exclude:
+    - 'spec/matchers.rb'
+
+# Offense count: 2
+# Configuration parameters: CountComments, CountAsOne, ExcludedMethods, IgnoredMethods.
+# IgnoredMethods: refine
+Metrics/BlockLength:
+  Max: 47
+
+# Offense count: 1
+# Configuration parameters: IgnoredMethods.
+Metrics/CyclomaticComplexity:
+  Max: 9
+
+# Offense count: 1
+# Configuration parameters: IgnoredMethods.
+Metrics/PerceivedComplexity:
+  Max: 10
+
+# Offense count: 2
+# Configuration parameters: ForbiddenDelimiters.
+# ForbiddenDelimiters: (?-mix:(^|\s)(EO[A-Z]{1}|END)(\s|$))
+Naming/HeredocDelimiterNaming:
+  Exclude:
+    - 'spec/matchers.rb'
+    - 'winrm-fs.gemspec'
+
+# Offense count: 2
+# Configuration parameters: MaxUnannotatedPlaceholdersAllowed, IgnoredMethods.
+# SupportedStyles: annotated, template, unannotated
+Style/FormatStringToken:
+  EnforcedStyle: unannotated
+
+# Offense count: 1
+# This cop supports unsafe auto-correction (--auto-correct-all).
+# Configuration parameters: AllowedReceivers.
+Style/HashEachMethods:
+  Exclude:
+    - 'lib/winrm-fs/core/file_transporter.rb'
+
+# Offense count: 5
+# This cop supports unsafe auto-correction (--auto-correct-all).
+# Configuration parameters: EnforcedStyle, IgnoredMethods.
+# SupportedStyles: predicate, comparison
+Style/NumericPredicate:
+  Exclude:
+    - 'spec/**/*'
+    - 'lib/winrm-fs/core/file_transporter.rb'
+    - 'lib/winrm-fs/file_manager.rb'
+
+# Offense count: 1
+# Configuration parameters: AllowedMethods.
+# AllowedMethods: respond_to_missing?
+Style/OptionalBooleanParameter:
+  Exclude:
+    - 'lib/winrm-fs/file_manager.rb'
+
+# Offense count: 1
+# This cop supports safe auto-correction (--auto-correct).
+Style/RedundantBegin:
+  Exclude:
+    - 'lib/winrm-fs/file_manager.rb'
+
+# Offense count: 4
+# This cop supports unsafe auto-correction (--auto-correct-all).
+# Configuration parameters: Mode.
+Style/StringConcatenation:
+  Exclude:
+    - 'spec/integration/file_manager_spec.rb'
+    - 'spec/spec_helper.rb'
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 4b674e6..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-distro: xenial
-cache: bundler
-language: ruby
-rvm:
-  - 2.4.9
-  - 2.5.7
-  - 2.6.5
-
-# This prevents testing branches that are created just for PRs
-branches:
-  only:
-  - master
diff --git a/appveyor.yml b/appveyor.yml
index ee0d8e3..939000b 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,6 +1,6 @@
 version: "master-{build}"
 
-os: Windows Server 2012 R2
+image: Visual Studio 2019
 platform:
   - x64
 
@@ -9,7 +9,11 @@ environment:
   winrm_password: Pass@word1
 
   matrix:
-    - ruby_version: "24"
+    - ruby_version: "27"
+      winrm_endpoint: http://localhost:5985/wsman
+    - ruby_version: "31"
+      winrm_endpoint: http://localhost:5985/wsman
+    - ruby_version: "30"
       winrm_endpoint: http://localhost:5985/wsman
 
 clone_folder: c:\projects\winrm-fs
@@ -21,6 +25,7 @@ branches:
 install:
   - ps: net user /add $env:winrm_user $env:winrm_password
   - ps: net localgroup administrators $env:winrm_user /add
+  - ps: Enable-PSRemoting -Force
   - ps: winrm set winrm/config/client/auth '@{Basic="true"}'
   - ps: winrm set winrm/config/service/auth '@{Basic="true"}'
   - ps: winrm set winrm/config/service '@{AllowUnencrypted="true"}'
diff --git a/winrm-fs.gemspec b/winrm-fs.gemspec
index 6eb0d4f..b2596e5 100644
--- a/winrm-fs.gemspec
+++ b/winrm-fs.gemspec
@@ -27,7 +27,7 @@ Gem::Specification.new do |s|
 
   s.bindir = 'bin'
   s.executables = ['rwinrmcp']
-  s.required_ruby_version = '>= 2.4.0'
+  s.required_ruby_version = '>= 2.5.0'
   s.add_runtime_dependency 'erubi', '>= 1.7'
   s.add_runtime_dependency 'logging', ['>= 1.6.1', '< 3.0']
   s.add_runtime_dependency 'rubyzip', '~> 2.0'
@@ -35,5 +35,5 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'pry'
   s.add_development_dependency 'rake', '>= 10.3', '< 13'
   s.add_development_dependency 'rspec', '~> 3.0'
-  s.add_development_dependency 'rubocop', '~> 0.68.0'
+  s.add_development_dependency 'rubocop', '~> 1.26.0'
 end