diff --git a/dao/src/main/resources/sql/schema-types-hsql.sql b/dao/src/main/resources/sql/schema-types-hsql.sql
index cadd830534..74095c4ed9 100644
--- a/dao/src/main/resources/sql/schema-types-hsql.sql
+++ b/dao/src/main/resources/sql/schema-types-hsql.sql
@@ -15,6 +15,6 @@
 --
 
 DROP TYPE json IF EXISTS;
-CREATE TYPE json AS text;
+CREATE TYPE json AS varchar;
 DROP TYPE jsonb IF EXISTS;
 CREATE TYPE jsonb AS other;