diff --git a/pkg/keymanagementprovider/refresh/kubeRefreshNamedspaced_test.go b/pkg/keymanagementprovider/refresh/kubeRefreshNamedspaced_test.go
index 4e31184a39..c429749435 100644
--- a/pkg/keymanagementprovider/refresh/kubeRefreshNamedspaced_test.go
+++ b/pkg/keymanagementprovider/refresh/kubeRefreshNamedspaced_test.go
@@ -1,3 +1,18 @@
+/*
+Copyright The Ratify Authors.
+
+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.
+*/
 package refresh
 
 import (
diff --git a/pkg/keymanagementprovider/refresh/kubeRefreshNamespaced.go b/pkg/keymanagementprovider/refresh/kubeRefreshNamespaced.go
index 36d41bf9c8..9625b79966 100644
--- a/pkg/keymanagementprovider/refresh/kubeRefreshNamespaced.go
+++ b/pkg/keymanagementprovider/refresh/kubeRefreshNamespaced.go
@@ -1,3 +1,18 @@
+/*
+Copyright The Ratify Authors.
+
+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.
+*/
 package refresh
 
 import (
diff --git a/pkg/keymanagementprovider/refresh/test_helper_test.go b/pkg/keymanagementprovider/refresh/test_helper_test.go
index 764f57d657..7cb8df3661 100644
--- a/pkg/keymanagementprovider/refresh/test_helper_test.go
+++ b/pkg/keymanagementprovider/refresh/test_helper_test.go
@@ -1,3 +1,18 @@
+/*
+Copyright The Ratify Authors.
+
+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.
+*/
 package refresh
 
 import (