diff --git a/SilKit/source/core/participant/Participant_impl.hpp b/SilKit/source/core/participant/Participant_impl.hpp
index e018e8741..36e77ff8d 100644
--- a/SilKit/source/core/participant/Participant_impl.hpp
+++ b/SilKit/source/core/participant/Participant_impl.hpp
@@ -522,7 +522,7 @@ auto Participant<SilKitConnectionT>::CreateDataPublisher(const std::string& cano
     supplementalData[SilKit::Core::Discovery::supplKeyDataPublisherPubUUID] = network;
     supplementalData[SilKit::Core::Discovery::supplKeyDataPublisherMediaType] = configuredDataNodeSpec.MediaType();
     supplementalData[SilKit::Core::Discovery::supplKeyDataPublisherPubLabels] =
-        SilKit::Config::Serialize(configuredDataNodeSpec.Labels());
+        SilKit::Config::SerializeAsJson(configuredDataNodeSpec.Labels());
 
     auto controller = CreateController<Services::PubSub::DataPublisher>(
         controllerConfig, network, std::move(supplementalData), true, true, &_timeProvider, configuredDataNodeSpec,
@@ -590,7 +590,7 @@ auto Participant<SilKitConnectionT>::CreateDataSubscriber(
     supplementalData[SilKit::Core::Discovery::supplKeyDataSubscriberTopic] = configuredDataNodeSpec.Topic();
     supplementalData[SilKit::Core::Discovery::supplKeyDataSubscriberMediaType] = configuredDataNodeSpec.MediaType();
     supplementalData[SilKit::Core::Discovery::supplKeyDataSubscriberSubLabels] =
-        SilKit::Config::Serialize(configuredDataNodeSpec.Labels());
+        SilKit::Config::SerializeAsJson(configuredDataNodeSpec.Labels());
 
     auto controller = CreateController<Services::PubSub::DataSubscriber>(
         controllerConfig, network, std::move(supplementalData), true, true, controllerConfig, &_timeProvider,
@@ -683,7 +683,7 @@ auto Participant<SilKitConnectionT>::CreateRpcClient(
     supplementalData[SilKit::Core::Discovery::supplKeyRpcClientFunctionName] = configuredRpcSpec.FunctionName();
     supplementalData[SilKit::Core::Discovery::supplKeyRpcClientMediaType] = configuredRpcSpec.MediaType();
     supplementalData[SilKit::Core::Discovery::supplKeyRpcClientLabels] =
-        SilKit::Config::Serialize(configuredRpcSpec.Labels());
+        SilKit::Config::SerializeAsJson(configuredRpcSpec.Labels());
     supplementalData[SilKit::Core::Discovery::supplKeyRpcClientUUID] = network;
 
     auto controller =
@@ -741,7 +741,7 @@ auto Participant<SilKitConnectionT>::CreateRpcServer(
     supplementalData[SilKit::Core::Discovery::supplKeyRpcServerFunctionName] = configuredRpcSpec.FunctionName();
     supplementalData[SilKit::Core::Discovery::supplKeyRpcServerMediaType] = configuredRpcSpec.MediaType();
     supplementalData[SilKit::Core::Discovery::supplKeyRpcServerLabels] =
-        SilKit::Config::Serialize(configuredRpcSpec.Labels());
+        SilKit::Config::SerializeAsJson(configuredRpcSpec.Labels());
 
     auto controller = CreateController<Services::Rpc::RpcServer>(controllerConfig, network, supplementalData, true,
                                                                  true, &_timeProvider, configuredRpcSpec, handler);
diff --git a/SilKit/source/dashboard/service/Test_DashboardSilKitToOatppMapper.cpp b/SilKit/source/dashboard/service/Test_DashboardSilKitToOatppMapper.cpp
index b73918aca..80fbfa446 100644
--- a/SilKit/source/dashboard/service/Test_DashboardSilKitToOatppMapper.cpp
+++ b/SilKit/source/dashboard/service/Test_DashboardSilKitToOatppMapper.cpp
@@ -162,7 +162,7 @@ TEST_F(Test_DashboardSilKitToOatppMapper, CreateBulkDataServiceDto_MapNetworkNam
     expectedLabel.value = "myValue";
     expectedLabel.kind = Services::MatchingLabel::Kind::Mandatory;
     auto labels = std::vector<Services::MatchingLabel>{expectedLabel};
-    descriptor.SetSupplementalDataItem(Core::Discovery::supplKeyDataSubscriberSubLabels, Config::Serialize(labels));
+    descriptor.SetSupplementalDataItem(Core::Discovery::supplKeyDataSubscriberSubLabels, Config::SerializeAsJson(labels));
 
     // Act
     const auto dataMapper = CreateService();
@@ -204,7 +204,7 @@ TEST_F(Test_DashboardSilKitToOatppMapper, CreateBulkRpcServiceDto_MapNetworkName
     expectedLabel.value = "myValue";
     expectedLabel.kind = Services::MatchingLabel::Kind::Mandatory;
     auto labels = std::vector<Services::MatchingLabel>{expectedLabel};
-    descriptor.SetSupplementalDataItem(Core::Discovery::supplKeyRpcClientLabels, Config::Serialize(labels));
+    descriptor.SetSupplementalDataItem(Core::Discovery::supplKeyRpcClientLabels, Config::SerializeAsJson(labels));
 
     // Act
     const auto dataMapper = CreateService();