diff --git a/launchdarkly-server-sdk.gemspec b/launchdarkly-server-sdk.gemspec
index a1d299cc..54b8aee8 100644
--- a/launchdarkly-server-sdk.gemspec
+++ b/launchdarkly-server-sdk.gemspec
@@ -3,7 +3,7 @@
 lib = File.expand_path("lib", __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require "ldclient-rb/version"
-require "rake"
+#require "rake"
 
 # rubocop:disable Metrics/BlockLength
 Gem::Specification.new do |spec|
@@ -16,7 +16,7 @@ Gem::Specification.new do |spec|
   spec.homepage      = "https://github.com/launchdarkly/ruby-server-sdk"
   spec.license       = "Apache-2.0"
 
-  spec.files         = FileList["lib/**/*", "README.md", "LICENSE.txt"]
+  spec.files         = `git ls-files -z`.split("\x0")
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
   spec.required_ruby_version = ">= 2.7.0"
@@ -41,6 +41,6 @@ Gem::Specification.new do |spec|
   # Please keep ld-eventsource dependency as an exact version so that bugfixes to
   # that LD library are always associated with a new SDK version.
 
-  spec.add_runtime_dependency "json", "~> 2.3"
+  spec.add_runtime_dependency "json", ">= 2.3"
   spec.add_runtime_dependency "http", ">= 4.4.0", "< 6.0.0"
 end