diff --git a/.travis.yml b/.travis.yml
index 963cab6..5ae7a6b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,7 @@
 language: ruby
 rvm:
-  - 1.9.3
-  - 2.0.0
-  - 2.1.0
-  - jruby-19mode # JRuby (1.9)
+  - 2.2.7
+  - 2.3.3
+  - 2.4.0
   - rbx-2
 install: "bundle install --retry=3"
diff --git a/exlibris-primo.gemspec b/exlibris-primo.gemspec
index b246d06..70db0f4 100644
--- a/exlibris-primo.gemspec
+++ b/exlibris-primo.gemspec
@@ -20,13 +20,14 @@ Gem::Specification.new do |s|
   s.add_dependency "require_all", "~> 1.3.1"
   # Leverage ActiveSupport core extensions.
   s.add_dependency "activesupport", ">= 3.2.14"
-  s.add_dependency "nokogiri", "~> 1.6.0"
+  s.add_dependency "nokogiri", "~> 1.6.8"
   s.add_dependency "json", "~> 1.8.0"
-  s.add_dependency "savon", "~> 2.8.0"
+  s.add_dependency "savon", "~> 2.11.1"
   s.add_dependency "iso-639", "~> 0.2.0"
   s.add_development_dependency "rake", "~> 10.1"
   s.add_development_dependency "vcr", "~> 2.9.0"
   s.add_development_dependency "webmock", "~> 1.20.0"
   s.add_development_dependency "pry", "~> 0.9.12.2"
   s.add_development_dependency 'minitest', '~> 4.7.5'
+  s.add_development_dependency 'test-unit'
 end
diff --git a/lib/exlibris/primo/config.rb b/lib/exlibris/primo/config.rb
index 009c2f5..7f8fc7a 100644
--- a/lib/exlibris/primo/config.rb
+++ b/lib/exlibris/primo/config.rb
@@ -7,7 +7,7 @@ module Primo
     module Config
       class << self
         include WriteAttributes
-        attr_accessor :base_url, :institution, :institutions, :libraries, :availability_statuses, :sources,
+        attr_accessor :base_url, :proxy_url, :institution, :institutions, :libraries, :availability_statuses, :sources,
           :facet_labels, :facet_top_level, :facet_collections, :facet_resource_types, :load_time
 
         def load_yaml file
@@ -29,6 +29,10 @@ def base_url
           @base_url ||= String.new config.base_url.to_s
         end
 
+        def proxy_url
+          @proxy_url ||= config.proxy_url
+        end
+
         def institution
           @institution ||= String.new config.institution.to_s
         end
diff --git a/lib/exlibris/primo/holding.rb b/lib/exlibris/primo/holding.rb
index becd0ec..4269da7 100644
--- a/lib/exlibris/primo/holding.rb
+++ b/lib/exlibris/primo/holding.rb
@@ -100,13 +100,14 @@ def to_source
 
       # Return the attribute accessible instance variables as a hash.
       def to_h
-        { :availlibrary => availlibrary, :record_id => record_id, :original_id => original_id, 
+        { 
+          :availlibrary => availlibrary, :record_id => record_id, :original_id => original_id, 
           :title => title, :author => author, :display_type => display_type, :source_id => source_id,
           :original_source_id => original_source_id, :source_record_id => source_record_id,
           :ils_api_id => ils_api_id, :institution_code => institution_code, :library_code => library_code,
           :availability_status_code => availability_status_code, :collection => collection,
           :call_number => call_number, :coverage => coverage, :notes => notes, :subfields => subfields,
-          :source_id => source_id, :source_class => source_class, :source_data => source_data }
+          :source_class => source_class, :source_data => source_data }
       end
     end
   end
diff --git a/lib/exlibris/primo/version.rb b/lib/exlibris/primo/version.rb
index 39b13a5..f12a680 100644
--- a/lib/exlibris/primo/version.rb
+++ b/lib/exlibris/primo/version.rb
@@ -1,5 +1,5 @@
 module Exlibris
   module Primo
-    VERSION = '1.1.9'
+    VERSION = '1.1.10'
   end
 end
diff --git a/lib/exlibris/primo/web_service/client/base/savon_client.rb b/lib/exlibris/primo/web_service/client/base/savon_client.rb
index 8a6bd78..a1e9870 100644
--- a/lib/exlibris/primo/web_service/client/base/savon_client.rb
+++ b/lib/exlibris/primo/web_service/client/base/savon_client.rb
@@ -11,9 +11,20 @@ def client
             # we don't want to make an extra HTTP call.
             # 
             # @client ||= Savon.client(wsdl: wsdl)
-            @client ||= Savon.client(endpoint: endpoint, namespace: endpoint, log: false, log_level: :warn)
+            @client ||= Savon.client(client_options)
           end
           protected :client
+          
+          def client_options
+            {
+              proxy: proxy_url, 
+              endpoint: endpoint, 
+              namespace: endpoint, 
+              log: false, 
+              log_level: :warn
+            }.delete_if { |k, v| v.blank? }
+          end
+          private :client_options
         end
       end
     end
diff --git a/test/config_test.rb b/test/config_test.rb
index 811cba0..d2575d4 100644
--- a/test/config_test.rb
+++ b/test/config_test.rb
@@ -17,9 +17,10 @@ def test_config
 
   def test_config_from_yaml
     reset_primo_configuration
-    yaml_primo_configuration
+    yaml_primo_configuration(false)
     assert_equal "yaml_url", Exlibris::Primo::Config.base_url
     assert_equal "YAML_INSTITUTION", Exlibris::Primo::Config.institution
+    assert_equal "yaml_proxy_url", Exlibris::Primo::Config.proxy_url
     assert_nil(Exlibris::Primo::Config.institutions)
       assert_equal({ "LIB_CODE1" => "Library Decoded 1", "LIB_CODE2" => "Library Decoded 2",
         "LIB_CODE3" => "Library Decoded 3" }, Exlibris::Primo::Config.libraries)
@@ -44,10 +45,12 @@ def test_config_from_yaml
 
   def test_config_attributes
     reset_primo_configuration
-    yaml_primo_configuration
+    yaml_primo_configuration(false)
     search = Exlibris::Primo::Search.new
     assert_equal "yaml_url", search.base_url
     assert_equal "YAML_INSTITUTION", search.institution
+    assert_equal "yaml_proxy_url", search
+                                     .proxy_url
     assert_equal({}, search.institutions)
     assert_equal({ "LIB_CODE1" => "Library Decoded 1", "LIB_CODE2" => "Library Decoded 2",
       "LIB_CODE3" => "Library Decoded 3" }, search.libraries)
diff --git a/test/support/config.yml b/test/support/config.yml
index 1720337..c9512ed 100644
--- a/test/support/config.yml
+++ b/test/support/config.yml
@@ -1,5 +1,6 @@
 base_url: "yaml_url"
 institution: "YAML_INSTITUTION"
+proxy_url: "yaml_proxy_url"
 libraries:
   "LIB_CODE1": "Library Decoded 1"
   "LIB_CODE2": "Library Decoded 2"
diff --git a/test/test_helper.rb b/test/test_helper.rb
index f53168d..45a489c 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -66,15 +66,17 @@ def assert_request(request, expected_root, *expected_args)
   end
   protected :assert_request
 
-  def yaml_primo_configuration
+  def yaml_primo_configuration(overide_proxy_url = true)
     Exlibris::Primo.configure do |config|
       config.load_yaml File.expand_path("../support/config.yml",  __FILE__)
+      config.proxy_url = nil if overide_proxy_url
     end
   end
 
   def reset_primo_configuration
     Exlibris::Primo.configure do |config|
       config.base_url = nil
+      config.proxy_url = nil
       config.institution = nil
       config.institutions = nil
       config.libraries = nil