diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 2259cb0..f23f51e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -3,7 +3,7 @@ name: build
 on:
   push:
     branches:
-    - master
+    - main
   pull_request:
 
   schedule:
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 19c9c25..f15a595 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -3,7 +3,7 @@ name: docs
 on:
   push:
     branches:
-    - master
+    - main
     paths:
     - "**/*.md"
   pull_request:
diff --git a/.github/workflows/rubocop.yml b/.github/workflows/rubocop.yml
index db37517..8a254a8 100644
--- a/.github/workflows/rubocop.yml
+++ b/.github/workflows/rubocop.yml
@@ -3,7 +3,7 @@ name: rubocop
 on:
   push:
     branches:
-    - master
+    - main
   pull_request:
 
 jobs:
diff --git a/.rubocop.yml b/.rubocop.yml
index 8a75458..7a0624a 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -9,7 +9,7 @@ inherit_gem:
 AllCops:
   Exclude:
     - "bin/*"
-  TargetRubyVersion: 2.5
+  TargetRubyVersion: 3.0
   NewCops: enable
 
 ############### Layout ###############
diff --git a/README.md b/README.md
index cc9cfb3..19b8d61 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ Send `Capistrano` deployment status to `Slack` via the Incoming Webhooks integra
 
 ## Requirements
 
-- Ruby >= 2.5
+- Ruby >= 3.0
 - Capistrano ~> 3.0
 - Slack
 
@@ -90,10 +90,10 @@ set :slacky, false
 
 This library aims to support and is [tested against][2] the following Ruby implementations:
 
-- Ruby 2.5
-- Ruby 2.6
-- Ruby 2.7
 - Ruby 3.0
+- Ruby 3.1
+- Ruby 3.2
+- Ruby 3.3
 
 If something doesn't work on one of these Ruby versions, it's a bug.
 
diff --git a/capistrano-slacky.gemspec b/capistrano-slacky.gemspec
index e729116..8257cb8 100644
--- a/capistrano-slacky.gemspec
+++ b/capistrano-slacky.gemspec
@@ -14,7 +14,7 @@ Gem::Specification.new do |spec|
   spec.homepage = "https://github.com/chubchenko/capistrano-slacky"
   spec.metadata = {
     "bug_tracker_uri" => "https://github.com/chubchenko/capistrano-slacky/issues",
-    "changelog_uri" => "https://github.com/chubchenko/capistrano-slacky/blob/master/CHANGELOG.md",
+    "changelog_uri" => "https://github.com/chubchenko/capistrano-slacky/blob/main/CHANGELOG.md",
     "homepage_uri" => spec.homepage,
     "source_code_uri" => "https://github.com/chubchenko/capistrano-slacky",
     "github_repo" => "ssh://github.com/chubchenko/capistrano-slacky"
diff --git a/spec/capistrano/slacky/facade/body_spec.rb b/spec/capistrano/slacky/facade/body_spec.rb
index ced0707..26513e9 100644
--- a/spec/capistrano/slacky/facade/body_spec.rb
+++ b/spec/capistrano/slacky/facade/body_spec.rb
@@ -19,7 +19,7 @@
               type: :mrkdwn, text: ">*Branch:*"
             },
             {
-              type: :mrkdwn, text: "`master`"
+              type: :mrkdwn, text: "`main`"
             },
             {
               type: :mrkdwn, text: ">*Duration:*"
diff --git a/spec/capistrano/slacky/messaging/default_spec.rb b/spec/capistrano/slacky/messaging/default_spec.rb
index 3df5b42..d87caaf 100644
--- a/spec/capistrano/slacky/messaging/default_spec.rb
+++ b/spec/capistrano/slacky/messaging/default_spec.rb
@@ -34,7 +34,7 @@
                 {type: :mrkdwn, text: ">*Stage:*"},
                 {type: :mrkdwn, text: "`production`"},
                 {type: :mrkdwn, text: ">*Branch:*"},
-                {type: :mrkdwn, text: "`master`"},
+                {type: :mrkdwn, text: "`main`"},
                 {type: :mrkdwn, text: ">*Duration:*"},
                 {type: :mrkdwn, text: a_string_matching(/`\d{2}:\d{2}`/)}
               ]
@@ -99,7 +99,7 @@
                 {type: :mrkdwn, text: ">*Stage:*"},
                 {type: :mrkdwn, text: "`production`"},
                 {type: :mrkdwn, text: ">*Branch:*"},
-                {type: :mrkdwn, text: "`master`"},
+                {type: :mrkdwn, text: "`main`"},
                 {type: :mrkdwn, text: ">*Duration:*"},
                 {type: :mrkdwn, text: a_string_matching(/`\d{2}:\d{2}`/)}
               ]
@@ -159,7 +159,7 @@
                   {type: :mrkdwn, text: ">*Stage:*"},
                   {type: :mrkdwn, text: "`production`"},
                   {type: :mrkdwn, text: ">*Branch:*"},
-                  {type: :mrkdwn, text: "`master`"},
+                  {type: :mrkdwn, text: "`main`"},
                   {type: :mrkdwn, text: ">*Duration:*"},
                   {type: :mrkdwn, text: a_string_matching(/`\d{2}:\d{2}`/)}
                 ]
@@ -201,7 +201,7 @@
                   {type: :mrkdwn, text: ">*Stage:*"},
                   {type: :mrkdwn, text: "`production`"},
                   {type: :mrkdwn, text: ">*Branch:*"},
-                  {type: :mrkdwn, text: "`master`"},
+                  {type: :mrkdwn, text: "`main`"},
                   {type: :mrkdwn, text: ">*Duration:*"},
                   {type: :mrkdwn, text: a_string_matching(/`\d{2}:\d{2}`/)}
                 ]
diff --git a/spec/support/config/capistrano.rb b/spec/support/config/capistrano.rb
index 36d09c2..aa0c954 100644
--- a/spec/support/config/capistrano.rb
+++ b/spec/support/config/capistrano.rb
@@ -16,7 +16,7 @@
 
 # Set the branch name to be deployed from SCM.
 Capistrano::Configuration.env.set(
-  :branch, "master"
+  :branch, "main"
 )
 
 # Set the user name.