diff --git a/core/src/main/scala/app/softnetwork/elastic/client/BulkApi.scala b/core/src/main/scala/app/softnetwork/elastic/client/BulkApi.scala
index c396d50a..6973c95e 100644
--- a/core/src/main/scala/app/softnetwork/elastic/client/BulkApi.scala
+++ b/core/src/main/scala/app/softnetwork/elastic/client/BulkApi.scala
@@ -31,6 +31,8 @@ import java.time.LocalDate
 import java.time.format.DateTimeFormatter
 import scala.concurrent.{ExecutionContext, Future}
 
+import scala.language.implicitConversions
+
 /** Bulk API for Elasticsearch clients.
   */
 trait BulkApi extends BulkTypes with ElasticClientHelpers {
diff --git a/core/src/main/scala/app/softnetwork/elastic/client/ElasticClientHelpers.scala b/core/src/main/scala/app/softnetwork/elastic/client/ElasticClientHelpers.scala
index 23f82066..3747ecfd 100644
--- a/core/src/main/scala/app/softnetwork/elastic/client/ElasticClientHelpers.scala
+++ b/core/src/main/scala/app/softnetwork/elastic/client/ElasticClientHelpers.scala
@@ -239,7 +239,7 @@ trait ElasticClientHelpers {
 
     val pattern = "^[a-zA-Z0-9._\\-@]+$".r
 
-    if (!pattern.matches(trimmed)) {
+    if (!pattern.pattern.matcher(trimmed).matches()) {
       return Some(
         ElasticError(
           message =
diff --git a/sql/src/main/scala/app/softnetwork/elastic/schema/package.scala b/sql/src/main/scala/app/softnetwork/elastic/schema/package.scala
index 897b8392..304bda0c 100644
--- a/sql/src/main/scala/app/softnetwork/elastic/schema/package.scala
+++ b/sql/src/main/scala/app/softnetwork/elastic/schema/package.scala
@@ -454,6 +454,8 @@ package object schema {
 
       }
 
+      val aliases = esAliases.aliases.map(entry => entry._1 -> implicitly[Value[_]](entry._2.node))
+
       // 4. Final construction of the Table
       Table(
         name = name,
@@ -463,7 +465,7 @@ package object schema {
         mappings = esMappings.options,
         settings = esSettings.options,
         processors = processors.toSeq,
-        aliases = esAliases.aliases.map(entry => entry._1 -> entry._2.node)
+        aliases = aliases
       ).update()
     }
   }