diff --git a/project/SharedSettings.scala b/project/SharedSettings.scala
index 6605dcd..136fef6 100644
--- a/project/SharedSettings.scala
+++ b/project/SharedSettings.scala
@@ -105,7 +105,7 @@
 
   val sparkVersion        = "2.3.3"
   val gerritApiVersion    = "2.13.7"
-  val esSpark             = "6.2.0"
+  val esSpark             = Option(System.getProperty("elasticsearch-spark-20-version")).getOrElse("6.2.0")
   val scalaLogging        = "3.7.2"
   val scopt               = "3.6.0"
   val scalactic           = "3.0.1"