diff --git a/backend/src/main/resources/db/changelog/db.changelog-master.yaml b/backend/src/main/resources/db/changelog/db.changelog-master.yaml
index 512b24e9..7a13f6fb 100644
--- a/backend/src/main/resources/db/changelog/db.changelog-master.yaml
+++ b/backend/src/main/resources/db/changelog/db.changelog-master.yaml
@@ -41,3 +41,6 @@ databaseChangeLog:
   - include:
       file: db.changelog-v2.yaml
       relativeToChangelogFile: true
+  - include:
+      file: db.changelog-v3.yaml
+      relativeToChangelogFile: true
diff --git a/backend/src/main/resources/db/changelog/db.changelog-v3.yaml b/backend/src/main/resources/db/changelog/db.changelog-v3.yaml
new file mode 100644
index 00000000..d7c23392
--- /dev/null
+++ b/backend/src/main/resources/db/changelog/db.changelog-v3.yaml
@@ -0,0 +1,93 @@
+###############################################################
+# Copyright (c) 2021-2023 Robert Bosch Manufacturing Solutions GmbH
+# Copyright (c) 2021-2023 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Apache License, Version 2.0 which is available at
+# https://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
+###############################################################
+
+databaseChangeLog:
+  - changeSet:
+      id: 06092023-01
+      author: slindner
+      changes:
+        - modifyDataType:
+            tableName: SHELL
+            columnName: ID_EXTERNAL
+            newDataType: NVARCHAR(2000)
+        - modifyDataType:
+            tableName: SHELL
+            columnName: ID_SHORT
+            newDataType: NVARCHAR(128)
+        - modifyDataType:
+            tableName: SHELL
+            columnName: SHELL_TYPE
+            newDataType: NVARCHAR(2000)
+        - modifyDataType:
+            tableName: SHELL_IDENTIFIER
+            columnName: IDENTIFIER
+            newDataType: NVARCHAR(2000)
+        - modifyDataType:
+            tableName: SHELL_DESCRIPTION
+            columnName: LANGUAGE
+            newDataType: NVARCHAR(64)
+        - modifyDataType:
+            tableName: SHELL_DESCRIPTION
+            columnName: TEXT
+            newDataType: NVARCHAR(1023)
+        - modifyDataType:
+            tableName: SHELL_DISPLAY_NAME
+            columnName: LANGUAGE
+            newDataType: NVARCHAR(64)
+        - modifyDataType:
+            tableName: SUBMODEL_DISPLAY_NAME
+            columnName: LANGUAGE
+            newDataType: NVARCHAR(64)
+        - modifyDataType:
+            tableName: SUBMODEL
+            columnName: ID_EXTERNAL
+            newDataType: NVARCHAR(2000)
+        - modifyDataType:
+            tableName: SUBMODEL
+            columnName: ID_SHORT
+            newDataType: NVARCHAR(128)
+        - modifyDataType:
+            tableName: SUBMODEL_DESCRIPTION
+            columnName: LANGUAGE
+            newDataType: NVARCHAR(64)
+        - modifyDataType:
+            tableName: SUBMODEL_DESCRIPTION
+            columnName: TEXT
+            newDataType: NVARCHAR(1023)
+        - modifyDataType:
+            tableName: SUBMODEL_ENDPOINT
+            columnName: ENDPOINT_ADDRESS
+            newDataType: NVARCHAR(2048)
+        - modifyDataType:
+            tableName: SUBMODEL_ENDPOINT
+            columnName: ENDPOINT_PROTOCOL
+            newDataType: NVARCHAR(128)
+        - modifyDataType:
+            tableName: SUBMODEL_ENDPOINT
+            columnName: ENDPOINT_PROTOCOL_VERSION
+            newDataType: NVARCHAR(128)
+        - modifyDataType:
+            tableName: SUBMODEL_ENDPOINT
+            columnName: SUB_PROTOCOL
+            newDataType: NVARCHAR(128)
+        - modifyDataType:
+            tableName: SUBMODEL_ENDPOINT
+            columnName: SUB_PROTOCOL_BODY_ENCODING
+            newDataType: NVARCHAR(128)
\ No newline at end of file