diff --git a/lib/rqrcode/version.rb b/lib/rqrcode/version.rb
index 2047d96..99c8725 100644
--- a/lib/rqrcode/version.rb
+++ b/lib/rqrcode/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module RQRCode
-  VERSION = "1.2.0"
+  VERSION = "2.0.0"
 end
diff --git a/rqrcode.gemspec b/rqrcode.gemspec
index 84f0539..5b7fb35 100644
--- a/rqrcode.gemspec
+++ b/rqrcode.gemspec
@@ -26,7 +26,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.required_ruby_version = ">= 2.3"
-  spec.add_dependency "rqrcode_core", "~> 0.2"
+  spec.add_dependency "rqrcode_core", "~> 1.0"
   spec.add_dependency "chunky_png", "~> 1.0"
   spec.add_development_dependency "bundler", ">= 2.0"
   spec.add_development_dependency "rake", "~> 13.0"