diff --git a/pkg/services/sqlstore/migrations/datasource_mig.go b/pkg/services/sqlstore/migrations/datasource_mig.go
index 4d41eb96366..3e6f5907c86 100644
--- a/pkg/services/sqlstore/migrations/datasource_mig.go
+++ b/pkg/services/sqlstore/migrations/datasource_mig.go
@@ -146,4 +146,8 @@ func addDataSourceMigration(mg *Migrator) {
 	mg.AddMigration("Update secure_json_data column to MediumText", NewRawSQLMigration("").
 		Mysql("ALTER TABLE data_source MODIFY COLUMN secure_json_data MEDIUMTEXT;"),
 	)
+
+	mg.AddMigration("Update json_data column to MediumText", NewRawSQLMigration("").
+		Mysql("ALTER TABLE data_source MODIFY COLUMN json_data MEDIUMTEXT;"),
+	)
 }