diff --git a/Gemfile.lock b/Gemfile.lock
index cf2af84..7f01004 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,7 +6,7 @@ PATH
       celluloid (= 0.15.2)
       celluloid-io (= 0.15.0)
       cuba (= 3.1.1)
-      http (= 0.5.0)
+      http (= 4.0.0)
       mime-types (~> 2.4.0)
       nio4r (~> 1.1.0)
       rack (~> 1.5.0)
@@ -19,6 +19,8 @@ GEM
   remote: https://rubygems.org/
   specs:
     CFPropertyList (2.2.8)
+    addressable (2.7.0)
+      public_suffix (>= 2.0.2, < 5.0)
     airplay (1.0.3)
       CFPropertyList (~> 2.2.0)
       celluloid (>= 0.15.0)
@@ -66,10 +68,14 @@ GEM
       guard (~> 2.1)
       guard-compat (~> 1.1)
       rspec (>= 2.99.0, < 4.0)
-    http (0.5.0)
-      http_parser.rb
+    http (4.0.0)
+      addressable (~> 2.3)
+      http-cookie (~> 1.0)
+      http-form_data (~> 2.0)
+      http_parser.rb (~> 0.6.0)
     http-cookie (1.0.2)
       domain_name (~> 0.5)
+    http-form_data (2.1.1)
     http_parser.rb (0.6.0)
     json (1.8.3)
     listen (3.0.1)
@@ -95,6 +101,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
+    public_suffix (3.1.1)
     rack (1.5.5)
     rake (10.4.2)
     rb-fsevent (0.9.5)
@@ -126,7 +133,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.3.0)
     rspec-support (3.3.0)
-    ruby-progressbar (1.7.5)
+    ruby-progressbar (1.10.1)
     shellany (0.0.1)
     simplecov (0.10.0)
       docile (~> 1.1.0)
diff --git a/airplayer.gemspec b/airplayer.gemspec
index 4615c67..b1f045a 100644
--- a/airplayer.gemspec
+++ b/airplayer.gemspec
@@ -28,7 +28,7 @@ Gem::Specification.new do |spec|
 
   spec.add_runtime_dependency 'airplay', '~> 1.0.2'
   spec.add_runtime_dependency 'rack', '~> 1.5.0'
-  spec.add_runtime_dependency 'http', '= 0.5.0'
+  spec.add_runtime_dependency 'http', '= 4.0.0'
   spec.add_runtime_dependency 'nio4r', '~> 1.1.0'
   spec.add_runtime_dependency 'reel', '= 0.4.0'
   spec.add_runtime_dependency 'reel-rack', '= 0.1.0'