diff --git a/.travis.yml b/.travis.yml
index fe3a2cd..f33ed99 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,7 @@ rvm:
   - 2.4
   - 2.5
   - 2.6
+  - 2.7
   - ruby-head
 
 before_install: gem install bundler
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8dd6b58..f08753d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,9 @@
 # Changelog
 All notable changes to this project will be documented in this file.
 
-The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
-and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
+## [0.4.0] - 2020-01-24
+### Added
+- Support for Ruby 2.7
 
 ## [0.3.0] - 2019-02-02
 ### Added
diff --git a/LICENSE.txt b/LICENSE.txt
index 3457db0..f9415d8 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2018-2019 Dmitry Gubitskiy
+Copyright (c) 2018-2020 Dmitry Gubitskiy
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/README.md b/README.md
index 91b257f..26054b5 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ Logger class patch for hourly log rotation support
 
 ## Requirements
 
-Ruby 2.3, 2.4, 2.5 or 2.6
+Ruby 2.3, 2.4, 2.5, 2.6 or 2.7
 
 ## Installation
 
diff --git a/lib/hourly_logger_rotator/patch/ruby_2_4.rb b/lib/hourly_logger_rotator/patch/ruby_2_4.rb
index 4d666b8..6fab496 100644
--- a/lib/hourly_logger_rotator/patch/ruby_2_4.rb
+++ b/lib/hourly_logger_rotator/patch/ruby_2_4.rb
@@ -5,7 +5,13 @@ module Patch
     module Ruby_2_4 # rubocop:disable Naming/ClassAndModuleCamelCase
       SiD = Logger::Period::SiD
 
-      def initialize(log = nil, shift_age: nil, shift_size: nil, shift_period_suffix: nil)
+      def initialize(
+        log = nil,
+        shift_age: nil,
+        shift_size: nil,
+        shift_period_suffix: nil,
+        binmode: nil
+      )
         @dev = @filename = @shift_age = @shift_size = @shift_period_suffix = nil
         mon_initialize
         set_dev(log)
diff --git a/lib/hourly_logger_rotator/patch/ruby_2_7.rb b/lib/hourly_logger_rotator/patch/ruby_2_7.rb
new file mode 100644
index 0000000..48c63ee
--- /dev/null
+++ b/lib/hourly_logger_rotator/patch/ruby_2_7.rb
@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+require "hourly_logger_rotator/patch/ruby_2_4"
+
+module HourlyLoggerRotator
+  module Patch
+    # rubocop:disable Naming/ClassAndModuleCamelCase
+    module Ruby_2_7
+      # rubocop:enable Naming/ClassAndModuleCamelCase
+      include Ruby_2_4
+    end
+  end
+end
diff --git a/lib/hourly_logger_rotator/version.rb b/lib/hourly_logger_rotator/version.rb
index 7352f44..2063efe 100644
--- a/lib/hourly_logger_rotator/version.rb
+++ b/lib/hourly_logger_rotator/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module HourlyLoggerRotator
-  VERSION = "0.3.0"
+  VERSION = "0.4.0"
 end