diff --git a/README.md b/README.md
index e201a82..9bcfae1 100644
--- a/README.md
+++ b/README.md
@@ -57,7 +57,6 @@ TurnkeyClient::SessionsApi.new(TURNKEY_CLIENT).get_whoami({ organization_id: "yo
 
 We use a swagger spec and [Swagger Codegen](https://github.com/swagger-api/swagger-codegen) to generate `turnkey_client`. To update this gem:
 * Update the swagger spec in [`turnkey_client_inputs`](./turnkey_client_inputs/)
-* Bump `gemVersion` in [`config.json`](./turnkey_client_inputs/config.json)
 * Run `make`
 
 ## Updating codegen templates
diff --git a/turnkey_client_inputs/templates/gemspec.mustache b/turnkey_client_inputs/templates/gemspec.mustache
index a0a651d..cc6bce9 100644
--- a/turnkey_client_inputs/templates/gemspec.mustache
+++ b/turnkey_client_inputs/templates/gemspec.mustache
@@ -30,7 +30,7 @@ Gem::Specification.new do |s|
 
   s.add_development_dependency 'rspec', '~> 3.6', '>= 3.6.0'
 
-  s.files         = `find *`.split("\n").uniq.sort.select { |f| !f.empty? }
+  s.files         = `git ls-files -z`.split("\x0")
   s.executables   = []
   s.require_paths = ["lib"]
 end