diff --git a/lib/pdk/util/vendored_file.rb b/lib/pdk/util/vendored_file.rb
index fc8bb4a15..78c46fe8c 100644
--- a/lib/pdk/util/vendored_file.rb
+++ b/lib/pdk/util/vendored_file.rb
@@ -51,8 +51,6 @@ def download_file
         uri = URI.parse(url)
         http = Net::HTTP.new(uri.host, uri.port)
         http.use_ssl = true
-        # TODO: Get rid of this
-        http.verify_mode = OpenSSL::SSL::VERIFY_NONE if Gem.win_platform?
         request = Net::HTTP::Get.new(uri.request_uri)
         response = http.request(request)
 
diff --git a/pdk.gemspec b/pdk.gemspec
index 496570c56..0606d1bd0 100644
--- a/pdk.gemspec
+++ b/pdk.gemspec
@@ -50,5 +50,7 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency 'json_pure', '~> 2.6.3'
   spec.add_runtime_dependency 'pathspec', '~> 1.1'
 
+  spec.add_development_dependency 'bigdecimal'
+
   spec.metadata['rubygems_mfa_required'] = 'true'
 end
diff --git a/spec/unit/pdk/util/vendored_file_spec.rb b/spec/unit/pdk/util/vendored_file_spec.rb
index 04aa8d0b8..56ca702d2 100644
--- a/spec/unit/pdk/util/vendored_file_spec.rb
+++ b/spec/unit/pdk/util/vendored_file_spec.rb
@@ -54,7 +54,6 @@
           allow(Net::HTTP::Get).to receive(:new).with(anything).and_return(mock_request)
           allow(Net::HTTP).to receive(:new).with(any_args).and_return(mock_http)
           allow(mock_http).to receive(:use_ssl=).with(anything)
-          allow(mock_http).to receive(:verify_mode=).with(anything)
         end
 
         let(:download_error) { described_class::DownloadError }