diff --git a/testsuite/utils/src/main/resources/META-INF/keycloak-server.json b/testsuite/utils/src/main/resources/META-INF/keycloak-server.json
index 66b234b1a3..7dec62a73b 100755
--- a/testsuite/utils/src/main/resources/META-INF/keycloak-server.json
+++ b/testsuite/utils/src/main/resources/META-INF/keycloak-server.json
@@ -147,7 +147,6 @@
             "user": "${keycloak.map.storage.connectionsJpa.user:}",
             "password": "${keycloak.map.storage.connectionsJpa.password:}",
             "driver": "org.postgresql.Driver",
-            "driverDialect": "org.keycloak.models.map.storage.jpa.hibernate.dialect.JsonbPostgreSQL95Dialect",
             "showSql": "${keycloak.map.storage.connectionsJpa,showSql:false}"
         },
         "ldap-map-storage": {