diff --git a/simple_navigation_bootstrap.gemspec b/simple_navigation_bootstrap.gemspec
index ca986d8..37d1143 100644
--- a/simple_navigation_bootstrap.gemspec
+++ b/simple_navigation_bootstrap.gemspec
@@ -15,7 +15,7 @@ Gem::Specification.new do |s|
 
   s.required_ruby_version = '>= 3.0.0'
 
-  s.files = `git ls-files`.split("\n")
+  s.files = Dir['README.md', 'CHANGELOG.md', 'LICENSE', 'lib/**/*.rb', 'vendor/**/*.scss']
 
   s.add_dependency 'simple-navigation', '~> 4.0'
   s.add_dependency 'zeitwerk'