asciidoctor-fb2.gemspec in asciidoctor-fb2-0.2.3 vs asciidoctor-fb2.gemspec in asciidoctor-fb2-0.2.4

@@ -17,10 +17,10 @@
     File.basename(f)
   end
   s.require_paths = ['lib']
 
   s.add_runtime_dependency 'asciidoctor', '~> 2.0'
-  s.add_runtime_dependency 'fb2rb', '~> 0.3.0'
+  s.add_runtime_dependency 'fb2rb', '~> 0.4.0'
 
   s.add_development_dependency 'asciidoctor-diagram', '~> 2.0'
   s.add_development_dependency 'rake', '~> 13.0'
   s.add_development_dependency 'rspec', '~> 3.10.0'
   s.add_development_dependency 'rubocop', '~> 0.93.0'