diff --git a/GSLCSVSerialization.podspec b/GSLCSVSerialization.podspec
index 1e33e2c..84c7952 100644
--- a/GSLCSVSerialization.podspec
+++ b/GSLCSVSerialization.podspec
@@ -1,10 +1,10 @@
 Pod::Spec.new do |s|
   s.name         = 'GSLCSVSerialization'
-  s.version      = '3.0.1'
+  s.version      = '4.0.0'
   s.author       = 'GyazSquare'
   s.license      = { :type => 'MIT' }
   s.homepage     = 'https://github.com/GyazSquare/GSLCSVSerialization'
-  s.source       = { :git => 'https://github.com/GyazSquare/GSLCSVSerialization.git', :tag => 'v3.0.1' }
+  s.source       = { :git => 'https://github.com/GyazSquare/GSLCSVSerialization.git', :tag => 'v4.0.0' }
   s.summary      = 'An Objective-C CSV parser for iOS, macOS, watchOS and tvOS.'
   s.ios.deployment_target = '8.0'
   s.osx.deployment_target = '10.6'