diff --git a/pom.xml b/pom.xml
index b183036..134c196 100644
--- a/pom.xml
+++ b/pom.xml
@@ -54,7 +54,7 @@
         <!-- spark 2.4 start -->
         <scala.version>2.11.12</scala.version>
         <scala.binary.version>2.12</scala.binary.version>
-        <spark.version>2.4.3</spark.version>
+        <spark.version>3.4.0</spark.version>
         <spark.bigversion>2.4</spark.bigversion>
         <scalatest.version>3.0.3</scalatest.version>
         <!-- spark 2.4 end -->