diff --git a/hanami.gemspec b/hanami.gemspec
index 27612dba..4580a8ee 100644
--- a/hanami.gemspec
+++ b/hanami.gemspec
@@ -4,7 +4,13 @@ lib = File.expand_path("../lib", __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require "hanami/version"
 
+GEM_CERT = File.expand_path('../gem-public_cert.pem', __dir__).freeze
+GEM_KEY  = File.expand_path('../gem-private_key.pem', __dir__).freeze
+
 Gem::Specification.new do |spec|
+  spec.cert_chain  = [GEM_CERT] if File.file? GEM_CERT
+  spec.signing_key = GEM_KEY    if File.file? GEM_KEY
+
   spec.name          = "hanami"
   spec.version       = Hanami::VERSION
   spec.authors       = ["Luca Guidi"]
@@ -29,7 +35,7 @@ Gem::Specification.new do |spec|
   spec.metadata["rubygems_mfa_required"] = "true"
   spec.required_ruby_version = ">= 3.0"
 
-  spec.metadata["allowed_push_host"] = "https://rubygems.org"
+  spec.metadata["allowed_push_host"] = "https://rubygems.causa-arcana.com"
 
   spec.add_dependency "bundler",          ">= 1.16", "< 3"
   spec.add_dependency "dry-configurable", "~> 1.0", "< 2"