diff --git a/build.ps1 b/build.ps1
index 254e8484a..622dfbe47 100644
--- a/build.ps1
+++ b/build.ps1
@@ -202,6 +202,7 @@ if ($Clean) {
         , ("$PSScriptRoot/src/schemas/JUnit4/*.xsd", "$PSScriptRoot/bin/schemas/JUnit4/")
         , ("$PSScriptRoot/src/schemas/NUnit25/*.xsd", "$PSScriptRoot/bin/schemas/NUnit25/")
         , ("$PSScriptRoot/src/schemas/NUnit3/*.xsd", "$PSScriptRoot/bin/schemas/NUnit3/")
+        , ("$PSScriptRoot/src/schemas/Cobertura/*.dtd", "$PSScriptRoot/bin/schemas/Cobertura/")
         , ("$PSScriptRoot/src/schemas/JaCoCo/*.dtd", "$PSScriptRoot/bin/schemas/JaCoCo/")
         , ("$PSScriptRoot/src/csharp/Pester/bin/$Configuration/net462/Pester.dll", "$PSScriptRoot/bin/bin/net462/")
         , ("$PSScriptRoot/src/csharp/Pester/bin/$Configuration/net6.0/Pester.dll", "$PSScriptRoot/bin/bin/net6.0/")
diff --git a/publish/filesToPublish.ps1 b/publish/filesToPublish.ps1
index 6ae35efc8..ec216ff18 100644
--- a/publish/filesToPublish.ps1
+++ b/publish/filesToPublish.ps1
@@ -8,6 +8,7 @@
     'bin/net6.0/Pester.dll'
     'en-US/about_Pester.help.txt'
     'en-US/about_PesterConfiguration.help.txt'
+    'schemas/Cobertura/coverage-loose.dtd'
     'schemas/JaCoCo/report.dtd'
     'schemas/JUnit4/junit_schema_4.xsd'
     'schemas/NUnit25/nunit_schema_2.5.xsd'
diff --git a/src/functions/Coverage.ps1 b/src/functions/Coverage.ps1
index 2a7d078b6..f6b630428 100644
--- a/src/functions/Coverage.ps1
+++ b/src/functions/Coverage.ps1
@@ -1186,7 +1186,7 @@ function Get-CoberturaReportXml {
     }
 
     $xmlDeclaration = '<?xml version="1.0" ?>'
-    $docType = '<!DOCTYPE coverage SYSTEM "https://raw.githubusercontent.com/cobertura/cobertura/master/cobertura/src/site/htdocs/xml/coverage-loose.dtd">'
+    $docType = '<!DOCTYPE coverage SYSTEM "coverage-loose.dtd">'
     $coverageXml = ConvertTo-XmlElement -Node $coverage
     $document = "$xmlDeclaration`n$docType`n$(([System.Xml.XmlElement]$coverageXml).OuterXml)"
 
diff --git a/src/schemas/Cobertura/coverage-loose.dtd b/src/schemas/Cobertura/coverage-loose.dtd
new file mode 100644
index 000000000..35c8272d2
--- /dev/null
+++ b/src/schemas/Cobertura/coverage-loose.dtd
@@ -0,0 +1,61 @@
+<!-- Portions (C) International Organization for Standardization 1986:
+     Permission to copy in any form is granted for use with
+     conforming SGML systems and applications as defined in
+     ISO 8879, provided this notice is included in all copies.
+-->
+
+  <!ELEMENT coverage (sources?,packages)>
+  <!ATTLIST coverage line-rate        CDATA #IMPLIED>
+  <!ATTLIST coverage branch-rate      CDATA #IMPLIED>
+  <!ATTLIST coverage lines-covered    CDATA #IMPLIED>
+  <!ATTLIST coverage lines-valid      CDATA #IMPLIED>
+  <!ATTLIST coverage branches-covered CDATA #IMPLIED>
+  <!ATTLIST coverage branches-valid   CDATA #IMPLIED>
+  <!ATTLIST coverage complexity       CDATA #IMPLIED>
+  <!ATTLIST coverage version          CDATA #REQUIRED>
+  <!ATTLIST coverage timestamp        CDATA #REQUIRED>
+
+  <!ELEMENT sources (source*)>
+
+  <!ELEMENT source (#PCDATA)>
+
+  <!ELEMENT packages (package*)>
+
+  <!ELEMENT package (classes)>
+  <!ATTLIST package name        CDATA #REQUIRED>
+  <!ATTLIST package line-rate   CDATA #IMPLIED>
+  <!ATTLIST package branch-rate CDATA #IMPLIED>
+  <!ATTLIST package complexity  CDATA #IMPLIED>
+
+  <!ELEMENT classes (class*)>
+
+  <!ELEMENT class (methods,lines)>
+  <!ATTLIST class name        CDATA #REQUIRED>
+  <!ATTLIST class filename    CDATA #REQUIRED>
+  <!ATTLIST class line-rate   CDATA #IMPLIED>
+  <!ATTLIST class branch-rate CDATA #IMPLIED>
+  <!ATTLIST class complexity  CDATA #IMPLIED>
+
+  <!ELEMENT methods (method*)>
+
+  <!ELEMENT method (lines)>
+  <!ATTLIST method name        CDATA #REQUIRED>
+  <!ATTLIST method signature   CDATA #REQUIRED>
+  <!ATTLIST method line-rate   CDATA #IMPLIED>
+  <!ATTLIST method branch-rate CDATA #IMPLIED>
+  <!ATTLIST method complexity  CDATA #IMPLIED>
+
+  <!ELEMENT lines (line*)>
+
+  <!ELEMENT line (conditions*)>
+  <!ATTLIST line number CDATA #REQUIRED>
+  <!ATTLIST line hits   CDATA #IMPLIED>
+  <!ATTLIST line branch CDATA "false">
+  <!ATTLIST line condition-coverage CDATA #IMPLIED>
+
+  <!ELEMENT conditions (condition*)>
+
+  <!ELEMENT condition EMPTY>
+  <!ATTLIST condition number CDATA #REQUIRED>
+  <!ATTLIST condition type CDATA #REQUIRED>
+  <!ATTLIST condition coverage CDATA #REQUIRED>