diff --git a/packages/database/src/migrations/20220829032330-AddConstraintDataServiceConfig-modifies-schema.js b/packages/database/src/migrations/20220829032330-AddConstraintDataServiceConfig-modifies-schema.js
index 6bb6c89e6e..dc8c887742 100644
--- a/packages/database/src/migrations/20220829032330-AddConstraintDataServiceConfig-modifies-schema.js
+++ b/packages/database/src/migrations/20220829032330-AddConstraintDataServiceConfig-modifies-schema.js
@@ -21,7 +21,7 @@ exports.up = async function (db) {
     // If any data elements or groups have not been updated to use a specific dhis instance, we set them to NOT_SET so we can add the constraint
     await db.runSql(`
       UPDATE ${table} SET config = (config || '{"dhisInstanceCode": "NOT_SET"}')
-      WHERE service_type = 'dhis' AND config->>'dhisInstanceCode'::text = 'null';
+      WHERE service_type = 'dhis' AND config->>'dhisInstanceCode'::text is null;
     `);
 
     // Add constraint