diff --git a/src/main/java/eu/europa/ec/dgc/gateway/restapi/controller/CertificateMigrationController.java b/src/main/java/eu/europa/ec/dgc/gateway/restapi/controller/CertificateMigrationController.java
index 92051c5e..c89945a9 100644
--- a/src/main/java/eu/europa/ec/dgc/gateway/restapi/controller/CertificateMigrationController.java
+++ b/src/main/java/eu/europa/ec/dgc/gateway/restapi/controller/CertificateMigrationController.java
@@ -1,3 +1,23 @@
+/*-
+ * ---license-start
+ * EU Digital Green Certificate Gateway Service / dgc-gateway
+ * ---
+ * Copyright (C) 2021 - 2022 T-Systems International GmbH and all other contributors
+ * ---
+ * 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.
+ * ---license-end
+ */
+
 package eu.europa.ec.dgc.gateway.restapi.controller;
 
 import static eu.europa.ec.dgc.gateway.utils.CmsUtils.getSignedString;
diff --git a/src/main/java/eu/europa/ec/dgc/gateway/restapi/dto/CmsPackageDto.java b/src/main/java/eu/europa/ec/dgc/gateway/restapi/dto/CmsPackageDto.java
index 2c93865c..13a50ff7 100644
--- a/src/main/java/eu/europa/ec/dgc/gateway/restapi/dto/CmsPackageDto.java
+++ b/src/main/java/eu/europa/ec/dgc/gateway/restapi/dto/CmsPackageDto.java
@@ -1,3 +1,23 @@
+/*-
+ * ---license-start
+ * EU Digital Green Certificate Gateway Service / dgc-gateway
+ * ---
+ * Copyright (C) 2021 - 2022 T-Systems International GmbH and all other contributors
+ * ---
+ * 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.
+ * ---license-end
+ */
+
 package eu.europa.ec.dgc.gateway.restapi.dto;
 
 import io.swagger.v3.oas.annotations.media.Schema;
diff --git a/src/main/java/eu/europa/ec/dgc/gateway/utils/CmsUtils.java b/src/main/java/eu/europa/ec/dgc/gateway/utils/CmsUtils.java
index d6ed12c3..b884cb0f 100644
--- a/src/main/java/eu/europa/ec/dgc/gateway/utils/CmsUtils.java
+++ b/src/main/java/eu/europa/ec/dgc/gateway/utils/CmsUtils.java
@@ -1,3 +1,23 @@
+/*-
+ * ---license-start
+ * EU Digital Green Certificate Gateway Service / dgc-gateway
+ * ---
+ * Copyright (C) 2021 - 2022 T-Systems International GmbH and all other contributors
+ * ---
+ * 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.
+ * ---license-end
+ */
+
 package eu.europa.ec.dgc.gateway.utils;
 
 import eu.europa.ec.dgc.gateway.restapi.dto.SignedCertificateDto;
diff --git a/src/test/java/eu/europa/ec/dgc/gateway/restapi/controller/CertificateMigrationControllerTest.java b/src/test/java/eu/europa/ec/dgc/gateway/restapi/controller/CertificateMigrationControllerTest.java
index 0a17f96d..acbb1034 100644
--- a/src/test/java/eu/europa/ec/dgc/gateway/restapi/controller/CertificateMigrationControllerTest.java
+++ b/src/test/java/eu/europa/ec/dgc/gateway/restapi/controller/CertificateMigrationControllerTest.java
@@ -1,3 +1,23 @@
+/*-
+ * ---license-start
+ * EU Digital Green Certificate Gateway Service / dgc-gateway
+ * ---
+ * Copyright (C) 2021 - 2022 T-Systems International GmbH and all other contributors
+ * ---
+ * 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.
+ * ---license-end
+ */
+
 package eu.europa.ec.dgc.gateway.restapi.controller;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
@@ -650,4 +670,4 @@ private RevocationBatchDto createRevocationBatch(String kid) {
         ));
         return revocationBatchDto;
     }
-}
\ No newline at end of file
+}