diff --git a/extensions/store/sql/participant-store-sql/src/main/java/org/eclipse/edc/registration/store/sql/schema/BaseSqlParticipantStatements.java b/extensions/store/sql/participant-store-sql/src/main/java/org/eclipse/edc/registration/store/sql/schema/BaseSqlParticipantStatements.java
index 19d67bce..9d42ce45 100644
--- a/extensions/store/sql/participant-store-sql/src/main/java/org/eclipse/edc/registration/store/sql/schema/BaseSqlParticipantStatements.java
+++ b/extensions/store/sql/participant-store-sql/src/main/java/org/eclipse/edc/registration/store/sql/schema/BaseSqlParticipantStatements.java
@@ -14,7 +14,8 @@
 
 package org.eclipse.edc.registration.store.sql.schema;
 
-import org.eclipse.edc.sql.dialect.BaseSqlDialect;
+
+import org.eclipse.edc.sql.dialect.PostgresDialect;
 
 import static java.lang.String.format;
 
@@ -55,7 +56,7 @@ public String getSelectParticipantByStateTemplate() {
     }
 
     protected String getFormatJsonOperator() {
-        return BaseSqlDialect.getJsonCastOperator();
+        return PostgresDialect.getJsonCastOperator();
     }
 
 }