diff --git a/build.sbt b/build.sbt
index 11d73b3d9..848921548 100644
--- a/build.sbt
+++ b/build.sbt
@@ -416,7 +416,8 @@ lazy val scala2_libraries =
 
 val circeVersion = "0.14.14"
 val monixVersion = "3.4.1"
-val sparkVersion = "3.5.6"
+
+val sparkVersion = "4.0.0"
 val elastic4sVersion = "9.0.0"
 
 val sparkCoreDep = "org.apache.spark" %% "spark-core" % sparkVersion