diff --git a/working-5.0-migration-guide.md b/working-5.0-migration-guide.md
index f38ba40e8e..5f17fda800 100644
--- a/working-5.0-migration-guide.md
+++ b/working-5.0-migration-guide.md
@@ -25,6 +25,7 @@ Working list of changes for 5.0
     with `org.hibernate.type.descriptor.sql.SqlTypeDescriptorRegistry`.  Applications using custom SqlTypeDescriptor
     implementations extending the built-in ones and relying on that behavior should be updated to call
     `SqlTypeDescriptorRegistry#addDescriptor` themselves.
+* The JDBC type for "big_integer" (org.hibernate.type.BigIntegerType) properties has changed from     java.sql.Types,NUMERIC to java.sql.Types.BIGINT.
 * Moving `org.hibernate.hql.spi.MultiTableBulkIdStrategy` and friends to new `org.hibernate.hql.spi.id` package
     and sub-packages
 
@@ -77,4 +78,4 @@ Simply returning false from `ManyToOne#isValid` would instead lead to a misleadi
 would at least have the proper context to know the property name/path.
 * Should `org.hibernate.boot.MetadataBuilder` be folded into `org.hibernate.boot.MetadataSources`?
 * Consider an additional "naming strategy contract" specifically for logical naming.  This would be non-pluggable, and
-would be the thing that generates the names we use to cross-reference and locate tables, columns, etc.
\ No newline at end of file
+would be the thing that generates the names we use to cross-reference and locate tables, columns, etc.