diff --git a/sbmt-pact.gemspec b/sbmt-pact.gemspec
index a7ed484..3b67e33 100644
--- a/sbmt-pact.gemspec
+++ b/sbmt-pact.gemspec
@@ -13,7 +13,7 @@ Gem::Specification.new do |spec|
   spec.homepage = "https://github.com/Kuper-Tech/sbmt-pact"
   spec.required_ruby_version = ">= 2.7.0"
 
-  spec.metadata["allowed_push_host"] = "https://rubygems.org"
+  spec.metadata["allowed_push_host"] = ENV.fetch("NEXUS_URL", "https://rubygems.org")
 
   spec.metadata["homepage_uri"] = spec.homepage
   spec.metadata["source_code_uri"] = spec.homepage