giblish.gemspec in giblish-0.7.6 vs giblish.gemspec in giblish-0.8.0

@@ -16,11 +16,11 @@
                            giblish generates indexed and searchable documents from a tree of
                            asciidoc files.
                        EOF
   spec.homepage      = "https://github.com/rillbert/giblish"
   spec.license       = "MIT"
-  spec.required_ruby_version = ">= 2.3"
+  spec.required_ruby_version = ">= 2.7"
 
   # Prevent pushing this gem to RubyGems.org by setting 'allowed_push_host', or
   # delete this section to allow pushing this gem to any host.
   # if spec.respond_to?(:metadata)
   #   spec.metadata['allowed_push_host'] = "https://gems.my-company.example"
@@ -36,14 +36,15 @@
   spec.add_development_dependency "bundler", "~> 2.0"
   spec.add_development_dependency "minitest", "~> 5.0"
   spec.add_development_dependency "rake", "~> 11.0"
   spec.add_development_dependency "oga", "~> 2.15"
   spec.add_development_dependency 'thor', '~> 0.20.3'
+  spec.add_development_dependency "asciidoctor-mathematical", "~> 0.3.5"
 
   # Usage: spec.add_runtime_dependency "[gem name]", [[version]]
-  spec.add_runtime_dependency "asciidoctor", "~>2.0", ">= 2.0.10"
-  spec.add_runtime_dependency "asciidoctor-diagram", ["~> 1.5"]
-  spec.add_runtime_dependency "asciidoctor-pdf", ["~> 1.5", ">= 1.5.3"]
-  spec.add_runtime_dependency "git", "~> 1.7"
-  spec.add_runtime_dependency "rouge", "~> 3.24"
-  spec.add_runtime_dependency "prawn-svg", "~> 0.30.0"
+  spec.add_runtime_dependency "asciidoctor", "~>2.0", ">= 2.0.16"
+  spec.add_runtime_dependency "asciidoctor-diagram", ["~> 2.1"]
+  spec.add_runtime_dependency "asciidoctor-pdf", ["~> 1.6", ">= 1.6.0"]
+  spec.add_runtime_dependency "git", "~> 1.9"
+  spec.add_runtime_dependency "rouge", "~> 3.0"
+  spec.add_runtime_dependency "prawn-svg", "~> 0.32.0"
 end