diff --git a/screening/source/sql/postgresql/migration/migration-074-075.sql b/screening/source/sql/postgresql/migration/migration-074-075.sql
new file mode 100644
index 0000000000000000000000000000000000000000..68dc983639ebaf4bae08587a87a3356e1f7e243f
--- /dev/null
+++ b/screening/source/sql/postgresql/migration/migration-074-075.sql
@@ -0,0 +1,10 @@
+---------------------------------------------
+-- the property "DESCRIPTION" should be optional for materials "VIRUS", "BACTERIUM", "COMPOUND"
+-- (screening-specific requirement)
+---------------------------------------------
+UPDATE material_type_property_types 
+    SET is_mandatory=FALSE 
+    WHERE 
+        maty_id IN (SELECT id FROM material_types WHERE code IN ('VIRUS', 'BACTERIUM', 'COMPOUND'))
+    AND
+        prty_id = (SELECT id FROM property_types WHERE code='DESCRIPTION');