diff --git a/examples/crack.rb b/examples/crack.rb
index 8b7f89d..66368e8 100644
--- a/examples/crack.rb
+++ b/examples/crack.rb
@@ -9,7 +9,7 @@ class Rep
   include HTTParty
 
   parser(
-    Proc.new do |body, format|
+    proc do |body, format|
       Crack::XML.parse(body)
     end
   )
diff --git a/examples/custom_parsers.rb b/examples/custom_parsers.rb
index f6131a3..ec6c698 100644
--- a/examples/custom_parsers.rb
+++ b/examples/custom_parsers.rb
@@ -53,7 +53,7 @@ end
 class AdHocParsing
   include HTTParty
   parser(
-    Proc.new do |body, format|
+    proc do |body, format|
       case format
       when :json
         body.to_json
diff --git a/features/steps/remote_service_steps.rb b/features/steps/remote_service_steps.rb
index b72bb21..02ba5b1 100644
--- a/features/steps/remote_service_steps.rb
+++ b/features/steps/remote_service_steps.rb
@@ -19,7 +19,7 @@ end
 
 Given /^that service takes (\d+) seconds to generate a response$/ do |time|
   @server_response_time = time.to_i
-  @handler.preprocessor = Proc.new { sleep time.to_i }
+  @handler.preprocessor = proc { sleep time.to_i }
 end
 
 Given /^a remote deflate service$/ do
diff --git a/lib/httparty/request.rb b/lib/httparty/request.rb
index d6d3143..16b06b2 100644
--- a/lib/httparty/request.rb
+++ b/lib/httparty/request.rb
@@ -14,7 +14,7 @@ module HTTParty
 
     SupportedURISchemes  = [URI::HTTP, URI::HTTPS, URI::Generic]
 
-    NON_RAILS_QUERY_STRING_NORMALIZER = Proc.new do |query|
+    NON_RAILS_QUERY_STRING_NORMALIZER = proc do |query|
       Array(query).sort_by { |a| a[0].to_s }.map do |key, value|
         if value.nil?
           key.to_s
diff --git a/spec/httparty_spec.rb b/spec/httparty_spec.rb
index 2e0d623..f2c065a 100644
--- a/spec/httparty_spec.rb
+++ b/spec/httparty_spec.rb
@@ -318,7 +318,7 @@ RSpec.describe HTTParty do
     end
 
     let(:parser) do
-      Proc.new { |data, format| CustomParser.parse(data) }
+      proc { |data, format| CustomParser.parse(data) }
     end
 
     it "should set parser options" do