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-rw-r--r--ext/stringio/stringio.gemspec2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/stringio/stringio.gemspec b/ext/stringio/stringio.gemspec
index ebf057bf6f..5bda30ee0c 100644
--- a/ext/stringio/stringio.gemspec
+++ b/ext/stringio/stringio.gemspec
@@ -16,7 +16,7 @@ Gem::Specification.new do |s|
s.files = ["README.md".freeze, "depend".freeze, "extconf.rb".freeze, "stringio.c".freeze]
s.homepage = "https://www.ruby-lang.org".freeze
s.licenses = ["BSD-2-Clause".freeze]
- s.required_ruby_version = Gem::Requirement.new(">= 2.1".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.cert_chain = %w[certs/nobu.pem]