diff --git a/.github/workflows/rspec.yml b/.github/workflows/rspec.yml
new file mode 100644
index 0000000..8a1def1
--- /dev/null
+++ b/.github/workflows/rspec.yml
@@ -0,0 +1,26 @@
+name: rspec
+
+on:
+  pull_request:
+    branches: [ main, master ]
+  workflow_dispatch:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: 3.1.6
+        bundler-cache: true
+        
+    - name: Install dependencies
+      run: bundle install
+      
+    - name: Run RSpec tests
+      run: bundle exec rspec
diff --git a/.gitignore b/.gitignore
index 1ca9e23..82560a7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,5 @@ test/tmp
 test/version_tmp
 tmp
 vendor
+
+.idea
diff --git a/soapforce.gemspec b/soapforce.gemspec
index ab83abe..247b95d 100644
--- a/soapforce.gemspec
+++ b/soapforce.gemspec
@@ -19,6 +19,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_runtime_dependency "savon", ">= 2.3.0", '< 3.0.0'
+  spec.add_runtime_dependency "nori", "2.6.0"
 
   spec.add_development_dependency 'rspec', '>= 2.14.0', '< 4.0.0'
   spec.add_development_dependency 'webmock', '>=2.3.2'
diff --git a/spec/lib/client_spec.rb b/spec/lib/client_spec.rb
index 3e4e7c1..e8633d9 100644
--- a/spec/lib/client_spec.rb
+++ b/spec/lib/client_spec.rb
@@ -319,7 +319,7 @@
 
   describe "#update" do
     before(:each) do
-      @body = "<tns:update><tns:sObjects><ins0:type>Opportunity</ins0:type><tns:Id>003ABCDE</tns:Id><tns:Name>SOAPForce Opportunity</tns:Name><tns:CloseDate>2013-08-12</tns:CloseDate><tns:StageName>Closed Won</tns:StageName></tns:sObjects></tns:update>"
+      @body = "<tns:update><tns:sObjects><ins0:type>Opportunity</ins0:type><ens:Id>003ABCDE</ens:Id><tns:Name>SOAPForce Opportunity</tns:Name><tns:CloseDate>2013-08-12</tns:CloseDate><tns:StageName>Closed Won</tns:StageName></tns:sObjects></tns:update>"
       @params = { Id: '003ABCDE', Name: "SOAPForce Opportunity", CloseDate: '2013-08-12', StageName: 'Closed Won' }
     end
 
@@ -356,7 +356,7 @@
 
   describe "#upsert" do
     before(:each) do
-      @body = "<tns:upsert><tns:externalIDFieldName>External_Id__c</tns:externalIDFieldName><tns:sObjects><ins0:type>Opportunity</ins0:type><tns:Name>New Opportunity</tns:Name><tns:CloseDate>2013-08-12</tns:CloseDate><tns:StageName>Prospecting</tns:StageName></tns:sObjects><tns:sObjects><ins0:type>Opportunity</ins0:type><tns:Id>003ABCDE</tns:Id><tns:Name>Existing Opportunity</tns:Name><tns:CloseDate>2013-08-12</tns:CloseDate><tns:StageName>Closed Won</tns:StageName></tns:sObjects></tns:upsert>"
+      @body = "<tns:upsert><tns:externalIDFieldName>External_Id__c</tns:externalIDFieldName><tns:sObjects><ins0:type>Opportunity</ins0:type><tns:Name>New Opportunity</tns:Name><tns:CloseDate>2013-08-12</tns:CloseDate><tns:StageName>Prospecting</tns:StageName></tns:sObjects><tns:sObjects><ins0:type>Opportunity</ins0:type><ens:Id>003ABCDE</ens:Id><tns:Name>Existing Opportunity</tns:Name><tns:CloseDate>2013-08-12</tns:CloseDate><tns:StageName>Closed Won</tns:StageName></tns:sObjects></tns:upsert>"
       @objects = [
         { Name: "New Opportunity", CloseDate: '2013-08-12', StageName: 'Prospecting' },
         { Id: '003ABCDE', Name: "Existing Opportunity", CloseDate: '2013-08-12', StageName: 'Closed Won' }
diff --git a/spec/support/fixture_helpers.rb b/spec/support/fixture_helpers.rb
index 539508b..ee662c3 100644
--- a/spec/support/fixture_helpers.rb
+++ b/spec/support/fixture_helpers.rb
@@ -32,8 +32,9 @@ def soap_envelope(headers, body)
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:tns="urn:partner.soap.sforce.com"
  xmlns:env="http://schemas.xmlsoap.org/soap/envelope/"
- xmlns:ins0="urn:sobject.partner.soap.sforce.com"
- xmlns:ins1="urn:fault.partner.soap.sforce.com">
+ xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
+ xmlns:fns="urn:fault.partner.soap.sforce.com"
+ xmlns:ens="urn:sobject.partner.soap.sforce.com">
 #{soap_headers(headers)}
 <env:Body>#{body}</env:Body>
 </env:Envelope>