diff --git a/redfish-core/src/filter_expr_executor.cpp b/redfish-core/src/filter_expr_executor.cpp
index f323d3f..df22ec2 100644
--- a/redfish-core/src/filter_expr_executor.cpp
+++ b/redfish-core/src/filter_expr_executor.cpp
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
 #include "filter_expr_executor.hpp"
 
 #include "filter_expr_parser_ast.hpp"
diff --git a/redfish-core/src/filter_expr_printer.cpp b/redfish-core/src/filter_expr_printer.cpp
index 32b4e6f..90101fd 100644
--- a/redfish-core/src/filter_expr_printer.cpp
+++ b/redfish-core/src/filter_expr_printer.cpp
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
 #include "filter_expr_printer.hpp"
 
 #include "filter_expr_parser_ast.hpp"
diff --git a/redfish-core/src/redfish.cpp b/redfish-core/src/redfish.cpp
index 61f2762..eb857af 100644
--- a/redfish-core/src/redfish.cpp
+++ b/redfish-core/src/redfish.cpp
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
 #include "redfish.hpp"
 
 #include "bmcweb_config.h"
diff --git a/redfish-core/src/registries.cpp b/redfish-core/src/registries.cpp
index 9ed261a..1549dd3 100644
--- a/redfish-core/src/registries.cpp
+++ b/redfish-core/src/registries.cpp
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
 #include "registries.hpp"
 
 #include "registries_selector.hpp"
diff --git a/redfish-core/src/utils/dbus_utils.cpp b/redfish-core/src/utils/dbus_utils.cpp
index 8421c22..f2199b7 100644
--- a/redfish-core/src/utils/dbus_utils.cpp
+++ b/redfish-core/src/utils/dbus_utils.cpp
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
 #include "utils/dbus_utils.hpp"
 
 #include "async_resp.hpp"
diff --git a/redfish-core/src/utils/json_utils.cpp b/redfish-core/src/utils/json_utils.cpp
index 76c5912..491890e 100644
--- a/redfish-core/src/utils/json_utils.cpp
+++ b/redfish-core/src/utils/json_utils.cpp
@@ -1,18 +1,6 @@
-/*
-Copyright (c) 2018 Intel Corporation
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-      http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
+// SPDX-FileCopyrightText: Copyright 2018 Intel Corporation
 #include "utils/json_utils.hpp"
 
 #include "error_messages.hpp"
diff --git a/redfish-core/src/utils/time_utils.cpp b/redfish-core/src/utils/time_utils.cpp
index 163f0ef..c01f0d9 100644
--- a/redfish-core/src/utils/time_utils.cpp
+++ b/redfish-core/src/utils/time_utils.cpp
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
 #include "utils/time_utils.hpp"
 
 #include <version>