diff --git a/src/main/resources/db/changelog-20230302_210000-schema.xml b/src/main/resources/db/changelog-20230302_210000-schema.xml
index 7ccb661..670658e 100644
--- a/src/main/resources/db/changelog-20230302_210000-schema.xml
+++ b/src/main/resources/db/changelog-20230302_210000-schema.xml
@@ -20,4 +20,30 @@
                                  referencedTableName="time_series"
                                  referencedColumnNames="id"/>
     </changeSet>
+    <changeSet author="orion" id="20230422-210000-1">
+        <sql>
+            delete
+            from time_series
+            where time_series_type = 'AUTHORS';
+            delete
+            from rule
+            where first_antecedent = 'AUTHORS'
+               OR second_antecedent = 'AUTHORS';
+            delete
+            from time_series
+            where time_series_type = 'AUTHOR_COMPLETED_ISSUES';
+            delete
+            from rule
+            where first_antecedent = 'AUTHOR_COMPLETED_ISSUES'
+               OR second_antecedent = 'AUTHOR_COMPLETED_ISSUES';
+            delete
+            from time_series
+            where time_series_type = 'AUTHOR_ISSUES';
+            delete
+            from rule
+            where first_antecedent = 'AUTHOR_ISSUES'
+               OR second_antecedent = 'AUTHOR_ISSUES';
+
+        </sql>
+    </changeSet>
 </databaseChangeLog>
\ No newline at end of file