diff --git a/src/AppInstallerCLITests/AppInstallerCLITests.vcxproj b/src/AppInstallerCLITests/AppInstallerCLITests.vcxproj
index 4051f4c994..cfa2a0bbe5 100644
--- a/src/AppInstallerCLITests/AppInstallerCLITests.vcxproj
+++ b/src/AppInstallerCLITests/AppInstallerCLITests.vcxproj
@@ -707,6 +707,9 @@
     <CopyFileToFolders Include="TestData\Manifest-Good-DefaultExpectedReturnCodeInInstallerSuccessCodes.yaml">
       <DeploymentContent>true</DeploymentContent>
     </CopyFileToFolders>
+    <CopyFileToFolders Include="TestData\Manifest-Good-InstallerUrl-BlockScalar.yaml">
+      <DeploymentContent>true</DeploymentContent>
+    </CopyFileToFolders>
     <CopyFileToFolders Include="TestData\Manifest-Good-MultipleArpVersionDeclared.yaml">
       <DeploymentContent>true</DeploymentContent>
     </CopyFileToFolders>
diff --git a/src/AppInstallerCLITests/AppInstallerCLITests.vcxproj.filters b/src/AppInstallerCLITests/AppInstallerCLITests.vcxproj.filters
index f29961ab30..187dafc12a 100644
--- a/src/AppInstallerCLITests/AppInstallerCLITests.vcxproj.filters
+++ b/src/AppInstallerCLITests/AppInstallerCLITests.vcxproj.filters
@@ -660,6 +660,9 @@
     <CopyFileToFolders Include="TestData\Manifest-Good-DefaultExpectedReturnCodeInInstallerSuccessCodes.yaml">
       <Filter>TestData</Filter>
     </CopyFileToFolders>
+    <CopyFileToFolders Include="TestData\Manifest-Good-InstallerUrl-BlockScalar.yaml">
+      <Filter>TestData</Filter>
+    </CopyFileToFolders>
     <CopyFileToFolders Include="TestData\Manifest-Good-InstallerTypeExeRoot-Silent.yaml">
       <Filter>TestData</Filter>
     </CopyFileToFolders>
diff --git a/src/AppInstallerCLITests/TestData/Manifest-Good-InstallerUrl-BlockScalar.yaml b/src/AppInstallerCLITests/TestData/Manifest-Good-InstallerUrl-BlockScalar.yaml
new file mode 100644
index 0000000000..a36e3ef3c1
--- /dev/null
+++ b/src/AppInstallerCLITests/TestData/Manifest-Good-InstallerUrl-BlockScalar.yaml
@@ -0,0 +1,17 @@
+# yaml-language-server: $schema=https://aka.ms/winget-manifest.singleton.1.1.0.schema.json
+
+PackageIdentifier: microsoft.msixsdk
+PackageName: MSIX SDK
+PackageVersion: 1.07.32-beta
+Publisher: Microsoft
+ShortDescription: description
+License: Test
+PackageLocale: en-US
+Installers:
+  - Architecture: x86
+    InstallerUrl: >
+      https://ThisIsNotUsed
+    InstallerSha256: 98B67758CEAFFCBB3FE47838FD0A8D7BD581C2650842D6B2B0E0D49A23270CCD
+    InstallerType: msi
+ManifestType: singleton
+ManifestVersion: 1.1.0
diff --git a/src/AppInstallerCLITests/YamlManifest.cpp b/src/AppInstallerCLITests/YamlManifest.cpp
index f893881f83..e00a467d9f 100644
--- a/src/AppInstallerCLITests/YamlManifest.cpp
+++ b/src/AppInstallerCLITests/YamlManifest.cpp
@@ -958,6 +958,15 @@ TEST_CASE("ReadGoodManifestWithSpaces", "[ManifestValidation]")
     REQUIRE(manifest.DefaultInstallerInfo.FileExtensions == MultiValue{ "appx", "appxbundle", "msix", "msixbundle" });
 }
 
+TEST_CASE("ReadGoodManifestInstallerUrlBlockScalar", "[ManifestValidation]")
+{
+    ManifestValidateOption validateOption = GetTestManifestValidateOption();
+    Manifest manifest = YamlParser::CreateFromPath(TestDataFile("Manifest-Good-InstallerUrl-BlockScalar.yaml"), validateOption);
+
+    REQUIRE(manifest.Installers.size() == 1);
+    REQUIRE(manifest.Installers[0].Url == "https://ThisIsNotUsed\n");
+}
+
 TEST_CASE("ReadGoodManifests", "[ManifestValidation]")
 {
     ManifestTestCase TestCases[] =
@@ -973,6 +982,7 @@ TEST_CASE("ReadGoodManifests", "[ManifestValidation]")
         { "Manifest-Good-Minimum-InstallerType.yaml" },
         { "Manifest-Good-Switches.yaml" },
         { "Manifest-Good-DefaultExpectedReturnCodeInInstallerSuccessCodes.yaml" },
+        { "Manifest-Good-InstallerUrl-BlockScalar.yaml" },
         { "Manifest-Good-InstallerTypeZip-PortableExe.yaml" },
         { "Manifest-Good-InstallerTypeZip-PortableExeUppercase.yaml" },
     };
diff --git a/src/AppInstallerSharedLib/JsonSchemaValidation.cpp b/src/AppInstallerSharedLib/JsonSchemaValidation.cpp
index 6cd43450ff..acd339be47 100644
--- a/src/AppInstallerSharedLib/JsonSchemaValidation.cpp
+++ b/src/AppInstallerSharedLib/JsonSchemaValidation.cpp
@@ -4,8 +4,29 @@
 #include "winget/JsonSchemaValidation.h"
 #include "winget/Resources.h"
 
+#include <regex>
+
 namespace AppInstaller::JsonSchema
 {
+    namespace
+    {
+        struct MultilineRegexEngine
+        {
+            explicit MultilineRegexEngine(const std::string& pattern) :
+                Regex(pattern, std::regex_constants::ECMAScript | std::regex_constants::multiline)
+            {
+            }
+
+            static bool search(const std::string& target, const MultilineRegexEngine& expression)
+            {
+                return std::regex_search(target, expression.Regex);
+            }
+
+        private:
+            std::regex Regex;
+        };
+    }
+
     Json::Value LoadSchemaDoc(std::string_view schemaStr)
     {
         Json::Value schemaJson;
@@ -35,7 +56,7 @@ namespace AppInstaller::JsonSchema
 
     bool Validate(const valijson::Schema& schema, const Json::Value& json, valijson::ValidationResults& results)
     {
-        valijson::Validator schemaValidator;
+        valijson::ValidatorT<MultilineRegexEngine> schemaValidator;
         valijson::adapters::JsonCppAdapter jsonAdapter(json);
         return schemaValidator.validate(schema, jsonAdapter, &results);
     }
@@ -59,4 +80,4 @@ namespace AppInstaller::JsonSchema
 
         return ss.str();
     }
-}
\ No newline at end of file
+}