diff --git a/cps-ri/src/main/resources/changelog/changelog-master.yaml b/cps-ri/src/main/resources/changelog/changelog-master.yaml
index 43a54ca..bf172d8 100644
--- a/cps-ri/src/main/resources/changelog/changelog-master.yaml
+++ b/cps-ri/src/main/resources/changelog/changelog-master.yaml
@@ -50,3 +50,5 @@
       file: changelog/db/changes/16-insert-cm-handle-state.yaml
   - include:
       file: changelog/db/changes/17-add-index-to-schema-set-yang-resources.yaml
+  - include:
+      file: changelog/db/changes/18-cascade-delete-fragment-children.yaml
diff --git a/cps-ri/src/main/resources/changelog/db/changes/18-cascade-delete-fragment-children.yaml b/cps-ri/src/main/resources/changelog/db/changes/18-cascade-delete-fragment-children.yaml
new file mode 100644
index 0000000..62a9e2f
--- /dev/null
+++ b/cps-ri/src/main/resources/changelog/db/changes/18-cascade-delete-fragment-children.yaml
@@ -0,0 +1,34 @@
+databaseChangeLog:
+  - changeSet:
+      author: cps
+      id: 18
+      changes:
+        - dropForeignKeyConstraint:
+            baseTableName: fragment
+            constraintName: fragment_parent_id_fkey
+        - addForeignKeyConstraint:
+            baseColumnNames: parent_id
+            baseTableName: fragment
+            constraintName: fragment_parent_id_fkey
+            deferrable: false
+            initiallyDeferred: false
+            onDelete: CASCADE
+            onUpdate: NO ACTION
+            referencedColumnNames: id
+            referencedTableName: fragment
+            validate: true
+      rollback:
+        - dropForeignKeyConstraint:
+            baseTableName: fragment
+            constraintName: fragment_parent_id_fkey
+        - addForeignKeyConstraint:
+            baseColumnNames: parent_id
+            baseTableName: fragment
+            constraintName: fragment_parent_id_fkey
+            deferrable: false
+            initiallyDeferred: false
+            onDelete: NO ACTION
+            onUpdate: NO ACTION
+            referencedColumnNames: id
+            referencedTableName: fragment
+            validate: true