diff --git a/ext/stringio/stringio.gemspec b/ext/stringio/stringio.gemspec
index c0258bac5e..83654d5a93 100644
--- a/ext/stringio/stringio.gemspec
+++ b/ext/stringio/stringio.gemspec
@@ -13,21 +13,21 @@ source_version = ["", "ext/stringio/"].find do |dir|
   end
 end
 Gem::Specification.new do |s|
-  s.name = "stringio".freeze
+  s.name = "stringio"
   s.version = source_version
 
-  s.required_rubygems_version = Gem::Requirement.new(">= 2.6".freeze)
-  s.require_paths = ["lib".freeze]
-  s.authors = ["Nobu Nakada".freeze]
-  s.description = "Pseudo `IO` class from/to `String`.".freeze
-  s.email = "nobu@ruby-lang.org".freeze
-  s.extensions = ["ext/stringio/extconf.rb".freeze]
-  s.files = ["README.md".freeze, "ext/stringio/extconf.rb".freeze, "ext/stringio/stringio.c".freeze]
-  s.homepage = "https://github.com/ruby/stringio".freeze
-  s.licenses = ["BSD-2-Clause".freeze]
-  s.required_ruby_version = Gem::Requirement.new(">= 2.2".freeze)
-  s.rubygems_version = "2.6.11".freeze
-  s.summary = "Pseudo IO on String".freeze
+  s.required_rubygems_version = Gem::Requirement.new(">= 2.6")
+  s.require_paths = ["lib"]
+  s.authors = ["Nobu Nakada"]
+  s.description = "Pseudo `IO` class from/to `String`."
+  s.email = "nobu@ruby-lang.org"
+  s.extensions = ["ext/stringio/extconf.rb"]
+  s.files = ["README.md", "ext/stringio/extconf.rb", "ext/stringio/stringio.c"]
+  s.homepage = "https://github.com/ruby/stringio"
+  s.licenses = ["BSD-2-Clause"]
+  s.required_ruby_version = Gem::Requirement.new(">= 2.2")
+  s.rubygems_version = "2.6.11"
+  s.summary = "Pseudo IO on String"
 
   # s.cert_chain  = %w[certs/nobu.pem]
   # s.signing_key = File.expand_path("~/.ssh/gem-private_key.pem") if $0 =~ /gem\z/