diff --git a/hal-client.gemspec b/hal-client.gemspec
index 70081ca..ef390a8 100644
--- a/hal-client.gemspec
+++ b/hal-client.gemspec
@@ -12,7 +12,7 @@ Gem::Specification.new do |spec|
   spec.description   = %q{An easy to use interface for REST APIs that use HAL.}
   spec.homepage      = "https://github.com/pezra/hal-client"
   spec.license       = "MIT"
-  spec.required_ruby_version = '~> 2.3'
+  spec.required_ruby_version = '>= 2.4'
 
   spec.files         = `git ls-files`.split($/)
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
diff --git a/lib/hal_client/link.rb b/lib/hal_client/link.rb
index 64becb9..21e0db0 100644
--- a/lib/hal_client/link.rb
+++ b/lib/hal_client/link.rb
@@ -8,7 +8,7 @@ class Link
       @literal_rel = rel
       @curie_resolver = curie_resolver
 
-      post_initialize(opts)
+      post_initialize(**opts)
     end
 
     def raw_href
diff --git a/lib/hal_client/version.rb b/lib/hal_client/version.rb
index 14de090..cb959bc 100644
--- a/lib/hal_client/version.rb
+++ b/lib/hal_client/version.rb
@@ -1,3 +1,3 @@
 class HalClient
-  VERSION = "6.0.1"
+  VERSION = "6.0.2"
 end