diff --git a/CHANGELOG.md b/CHANGELOG.md
index 42b7300..9cccf74 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,8 @@ Given a version number MAJOR.MINOR.PATCH, increment:
 
 
 ## [Unreleased]
+
+## [2.4.0] - 2021-01-21
 ### Added
 - Transfer.account_type property to allow 'checking', 'salary' or 'savings' account specification
 - Transfer.external_id property to allow users to take control over duplication filters
diff --git a/Gemfile.lock b/Gemfile.lock
index f7c1179..ad5085c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    starkbank (2.3.0)
+    starkbank (2.4.0)
       starkbank-ecdsa (~> 0.0.5)
 
 GEM
diff --git a/README.md b/README.md
index e98bdf9..77c036e 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ gem install starkbank
 1.2 Or just add this to your Gemfile:
 
 ```sh
-gem('starkbank', '~> 2.3.0')
+gem('starkbank', '~> 2.4.0')
 ```
 
 ### 2. Create your Private and Public Keys
diff --git a/lib/utils/request.rb b/lib/utils/request.rb
index 4f23186..04a3b4c 100644
--- a/lib/utils/request.rb
+++ b/lib/utils/request.rb
@@ -61,7 +61,7 @@ def self.fetch(method:, path:, payload: nil, query: nil, user: nil)
         req['Access-Time'] = access_time
         req['Access-Signature'] = signature
         req['Content-Type'] = 'application/json'
-        req['User-Agent'] = "Ruby-#{RUBY_VERSION}-SDK-2.3.0"
+        req['User-Agent'] = "Ruby-#{RUBY_VERSION}-SDK-2.4.0"
         req['Accept-Language'] = language
 
         request = Net::HTTP.start(uri.hostname, use_ssl: true) { |http| http.request(req) }
diff --git a/starkbank.gemspec b/starkbank.gemspec
index 6540f7c..9eda2ad 100644
--- a/starkbank.gemspec
+++ b/starkbank.gemspec
@@ -2,7 +2,7 @@
 
 Gem::Specification.new do |s|
   s.name = 'starkbank'
-  s.version = '2.3.0'
+  s.version = '2.4.0'
   s.date = '2020-04-06'
   s.summary = 'SDK to facilitate Ruby integrations with Stark Bank'
   s.authors = 'starkbank'