diff --git a/README.md b/README.md
index 36515ef..d098c62 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,21 @@ city = details.city # Emeryville
 loc = details.loc # 37.8342,-122.2900
 ```
 
+#### To make an IPv6 request
+
+```ruby
+require 'ipinfo'
+
+access_token = '123456789abc'
+handler = IPinfo::create(access_token)
+handler.initialize_v6
+ip_address = '216.239.36.21'
+
+details = handler.details(ip_address)
+city = details.city # Emeryville
+loc = details.loc # 37.8342,-122.2900
+``````
+
 ##### Note about Rails 6+
 
 If using this package in Rails 6+, the Zeitwerk auto-loader may not properly
diff --git a/lib/ipinfo.rb b/lib/ipinfo.rb
index 317b63f..0ae29ea 100644
--- a/lib/ipinfo.rb
+++ b/lib/ipinfo.rb
@@ -33,18 +33,11 @@ class IPinfo::IPinfo
     attr_accessor :access_token, :countries, :httpc, :host_type
 
     def initialize(access_token = nil, settings = {})
-        @access_token = access_token
-        @host_type = settings.fetch('host_type', :v4)
-        @httpc = prepare_http_client(settings.fetch('http_client', nil))
+        initialize_base(access_token, settings, host_type: :v4)
+    end
 
-        maxsize = settings.fetch('maxsize', DEFAULT_CACHE_MAXSIZE)
-        ttl = settings.fetch('ttl', DEFAULT_CACHE_TTL)
-        @cache = settings.fetch('cache', DefaultCache.new(ttl, maxsize))
-        @countries = settings.fetch('countries', DEFAULT_COUNTRY_LIST)
-        @eu_countries = settings.fetch('eu_countries', DEFAULT_EU_COUNTRIES_LIST)
-        @countries_flags = settings.fetch('countries_flags', DEFAULT_COUNTRIES_FLAG_LIST)
-        @countries_currencies = settings.fetch('countries_currencies', DEFAULT_COUNTRIES_CURRENCIES_LIST)
-        @continents = settings.fetch('continents', DEFAULT_CONTINENT_LIST)
+    def initialize_v6(access_token = nil, settings = {})
+        initialize_base(access_token, settings, host_type: :v6)
     end
 
     def details(ip_address = nil)
@@ -159,15 +152,27 @@ def request_details(ip_address = nil)
     end
 
     def prepare_http_client(httpc = nil)
-        @httpc = if httpc
-                     Adapter.new(access_token, httpc, host_type)
-                 else
-                     Adapter.new(access_token, :net_http, host_type)
-                 end
+        @httpc = httpc ? Adapter.new(access_token, httpc, host_type) :
+                        Adapter.new(access_token, :net_http, host_type)
     end
 
     private
 
+    def initialize_base(access_token = nil, settings = {}, host_type: :v4)
+        @access_token = access_token
+        @host_type = host_type
+        @httpc = prepare_http_client(settings.fetch('http_client', nil))
+
+        maxsize = settings.fetch('maxsize', DEFAULT_CACHE_MAXSIZE)
+        ttl = settings.fetch('ttl', DEFAULT_CACHE_TTL)
+        @cache = settings.fetch('cache', DefaultCache.new(ttl, maxsize))
+        @countries = settings.fetch('countries', DEFAULT_COUNTRY_LIST)
+        @eu_countries = settings.fetch('eu_countries', DEFAULT_EU_COUNTRIES_LIST)
+        @countries_flags = settings.fetch('countries_flags', DEFAULT_COUNTRIES_FLAG_LIST)
+        @countries_currencies = settings.fetch('countries_currencies', DEFAULT_COUNTRIES_CURRENCIES_LIST)
+        @continents = settings.fetch('continents', DEFAULT_CONTINENT_LIST)
+    end
+
     def isBogon(ip)
         if ip.nil?
             return false
diff --git a/lib/ipinfo/adapter.rb b/lib/ipinfo/adapter.rb
index 615b7bf..a4a1f56 100644
--- a/lib/ipinfo/adapter.rb
+++ b/lib/ipinfo/adapter.rb
@@ -3,6 +3,7 @@
 require 'faraday'
 require 'cgi'
 require 'ipinfo/mod'
+require_relative './version.rb'
 
 class IPinfo::Adapter
     HOST = 'ipinfo.io'
@@ -44,7 +45,7 @@ def connection(adapter)
 
     def default_headers
         headers = {
-            'User-Agent' => 'IPinfoClient/Ruby/2.2.0',
+            'User-Agent' => 'IPinfoClient/Ruby/#{IPinfo::VERSION}',
             'Accept' => 'application/json'
         }
         headers['Authorization'] = "Bearer #{CGI.escape(token)}" if token
diff --git a/test/ipinfo_test.rb b/test/ipinfo_test.rb
index 628ad78..8c8b79f 100644
--- a/test/ipinfo_test.rb
+++ b/test/ipinfo_test.rb
@@ -22,8 +22,9 @@ def test_set_adapter_v4
     def test_set_adapter_v6
         ipinfo = IPinfo.create(
             ENV['IPINFO_TOKEN'],
-            { http_client: :excon, 'host_type' => :v6 }
+            { http_client: :excon }
         )
+        ipinfo.initialize_v6
 
         assert(ipinfo.httpc = :excon)
     end
@@ -103,15 +104,17 @@ def test_lookup_ip6
         end
     end
 
-    def test_lookup_ip6_on_host_v6
-        ipinfo = IPinfo.create(ENV['IPINFO_TOKEN'], { 'host_type' => :v6 })
+    # # Requires IPv6 support
+    # def test_lookup_ip6_on_host_v6
+    #     ipinfo = IPinfo.create(ENV['IPINFO_TOKEN'])
+    #     ipinfo.initialize_v6
 
-        # multiple checks for cache
-        (0...5).each do |_|
-            resp = ipinfo.details(TEST_IPV6)
-            assert_ip6(resp)
-        end
-    end
+    #     # multiple checks for cache
+    #     (0...5).each do |_|
+    #         resp = ipinfo.details(TEST_IPV6)
+    #         assert_ip6(resp)
+    #     end
+    # end
 
     def assert_ip4(resp)
         assert_equal(resp.ip, TEST_IPV4)
@@ -191,13 +194,15 @@ def test_lookup_ip4
         end
     end
 
-    def test_lookup_ip4_on_host_v6
-        ipinfo = IPinfo.create(ENV['IPINFO_TOKEN'], { 'host_type' => :v6 })
-
-        # multiple checks for cache
-        (0...5).each do |_|
-            resp = ipinfo.details(TEST_IPV4)
-            assert_ip4(resp)
-        end
-    end
+    # # Requires IPv6 support
+    # def test_lookup_ip4_on_host_v6
+    #     ipinfo = IPinfo.create(ENV['IPINFO_TOKEN'])
+    #     ipinfo.initialize_v6
+
+    #     # multiple checks for cache
+    #     (0...5).each do |_|
+    #         resp = ipinfo.details(TEST_IPV4)
+    #         assert_ip4(resp)
+    #     end
+    # end
 end