diff --git a/lib/xero-ruby/version.rb b/lib/xero-ruby/version.rb
index 2189d3cf..89347445 100644
--- a/lib/xero-ruby/version.rb
+++ b/lib/xero-ruby/version.rb
@@ -11,5 +11,5 @@
 =end
 
 module XeroRuby
-  VERSION = '4.3.0'
+  VERSION = '4.3.1'
 end
diff --git a/xero-ruby.gemspec b/xero-ruby.gemspec
index 7757d70c..2662de90 100644
--- a/xero-ruby.gemspec
+++ b/xero-ruby.gemspec
@@ -28,7 +28,7 @@ Gem::Specification.new do |s|
 
   s.add_runtime_dependency 'faraday', '>= 2.0', '< 3.0'
   s.add_runtime_dependency 'json', '~> 2.1', '>= 2.1.0'
-  s.add_runtime_dependency 'json-jwt', '~> 1.5', '>= 1.5.2'
+  s.add_runtime_dependency 'json-jwt', '~> 1.16', '>= 1.16.3'
   s.add_development_dependency 'rspec', '~> 3.6', '>= 3.6.0'
 
   s.files         = Dir.glob("{lib}/**/*") + %w(README.md)