diff --git a/elevate.gemspec b/elevate.gemspec
index 95864b7..2bde6f9 100644
--- a/elevate.gemspec
+++ b/elevate.gemspec
@@ -17,5 +17,5 @@ Gem::Specification.new do |gem|
   gem.add_development_dependency 'rake', '>= 0.9.0'
   gem.add_development_dependency 'guard-motion', '~> 0.1.1'
   gem.add_development_dependency 'rb-fsevent', '~> 0.9.1'
-  gem.add_development_dependency 'webstub', '~> 0.3.3'
+  gem.add_development_dependency 'webstub', '~> 0.3.8'
 end
diff --git a/spec/api_spec.rb b/spec/api_spec.rb
index cbbc887..e411155 100644
--- a/spec/api_spec.rb
+++ b/spec/api_spec.rb
@@ -125,6 +125,9 @@ class Context
       end
 
       it "invokes on_timeout when a timeout occurs" do
+        @result = ""
+        @timed_out = false
+
         async do
           timeout 0.5
 
diff --git a/spec/http/http_request_spec.rb b/spec/http/http_request_spec.rb
index cd2a6f5..0bfd87f 100644
--- a/spec/http/http_request_spec.rb
+++ b/spec/http/http_request_spec.rb
@@ -52,7 +52,7 @@
     before do
       stub_request(:get, @url).with(headers: { "API-Token" => "abc123" }).to_return(body: @body)
 
-      @request = Elevate::HTTP::HTTPRequest.new(:get, @url, headers: {})
+      @request = Elevate::HTTP::HTTPRequest.new(:get, @url, headers: { "API-Token" => "abc123" })
       @response = @request.response
     end