diff --git a/src/AppInstallerCLITests/RestClient.cpp b/src/AppInstallerCLITests/RestClient.cpp
index d044975052..d15178c6d4 100644
--- a/src/AppInstallerCLITests/RestClient.cpp
+++ b/src/AppInstallerCLITests/RestClient.cpp
@@ -49,7 +49,8 @@ TEST_CASE("GetSupportedInterface", "[RestSource]")
     Version version{ "1.0.0" };
     REQUIRE(RestClient::GetSupportedInterface(utility::conversions::to_utf8string(TestRestUri), {}, info, version)->GetVersion() == version);
 
-    Version invalid{ "1.2.0" };
+    // Update this test to next version so that we don't forget to add to supported versions before rest e2e tests are available.
+    Version invalid{ "1.5.0" };
     REQUIRE_THROWS(RestClient::GetSupportedInterface(utility::conversions::to_utf8string(TestRestUri), {}, info, invalid));
 }
 
diff --git a/src/AppInstallerRepositoryCore/Rest/RestClient.cpp b/src/AppInstallerRepositoryCore/Rest/RestClient.cpp
index 5edf2afc8c..7f2e9af901 100644
--- a/src/AppInstallerRepositoryCore/Rest/RestClient.cpp
+++ b/src/AppInstallerRepositoryCore/Rest/RestClient.cpp
@@ -4,6 +4,7 @@
 #include "RestClient.h"
 #include "Rest/Schema/1_0/Interface.h"
 #include "Rest/Schema/1_1/Interface.h"
+#include "Rest/Schema/1_4/Interface.h"
 #include "Rest/Schema/HttpClientHelper.h"
 #include <winget/JsonUtil.h>
 #include "Rest/Schema/InformationResponseDeserializer.h"
@@ -17,7 +18,7 @@ using namespace AppInstaller::Utility;
 namespace AppInstaller::Repository::Rest
 {
     // Supported versions
-    std::set<Version> WingetSupportedContracts = { Version_1_0_0, Version_1_1_0 };
+    std::set<Version> WingetSupportedContracts = { Version_1_0_0, Version_1_1_0, Version_1_4_0 };
 
     constexpr std::string_view WindowsPackageManagerHeader = "Windows-Package-Manager"sv;
     constexpr size_t WindowsPackageManagerHeaderMaxLength = 1024;
@@ -130,6 +131,10 @@ namespace AppInstaller::Repository::Rest
         {
             return std::make_unique<Schema::V1_1::Interface>(api, information, additionalHeaders);
         }
+        else if (version == Version_1_4_0)
+        {
+            return std::make_unique<Schema::V1_4::Interface>(api, information, additionalHeaders);
+        }
 
         THROW_HR(APPINSTALLER_CLI_ERROR_RESTSOURCE_INVALID_VERSION);
     }