metatron.gemspec in metatron-0.5.0 vs metatron.gemspec in metatron-0.6.0

@@ -24,12 +24,11 @@
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
   spec.required_ruby_version = "~> 3.1"
 
-  spec.add_runtime_dependency "json",                 "~> 2.6"
-  spec.add_runtime_dependency "sinatra",              "~> 3.1"
-  spec.add_runtime_dependency "sinatra-contrib",      "~> 3.1"
+  spec.add_runtime_dependency "json", "~> 2.6"
+  spec.add_runtime_dependency "rack", ">= 2.2.8", "< 4"
 
   spec.add_development_dependency "bundler",             "~> 2.3"
   spec.add_development_dependency "byebug",              "~> 11"
   spec.add_development_dependency "rack-test",           "~> 2.0"
   spec.add_development_dependency "rake",                "~> 12.3"