diff --git a/pom.xml b/pom.xml
index 796e739..67f875b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,7 +22,7 @@
 
 		<junit.jupiter.version>5.6.0</junit.jupiter.version>
 		
-		<spark.version>3.1.1</spark.version>
+		<spark.version>3.4.0</spark.version>
 		<jaxb.version>2.3.2</jaxb.version>
 
 		<log4j.version>2.17.1</log4j.version>
diff --git a/spark-examples/push-down-predicates/pom.xml b/spark-examples/push-down-predicates/pom.xml
index d056f22..cab2807 100644
--- a/spark-examples/push-down-predicates/pom.xml
+++ b/spark-examples/push-down-predicates/pom.xml
@@ -22,7 +22,7 @@
 		<dependency>
 			<groupId>org.apache.spark</groupId>
 			<artifactId>spark-core_2.12</artifactId>
-			<version>3.0.0</version>
+			<version>3.4.0</version>
 		</dependency>
 
 		<dependency>
diff --git a/spark-examples/xsd-spark-schema/xsd-spark-schema-core/pom.xml b/spark-examples/xsd-spark-schema/xsd-spark-schema-core/pom.xml
index a563fe4..49ecab6 100644
--- a/spark-examples/xsd-spark-schema/xsd-spark-schema-core/pom.xml
+++ b/spark-examples/xsd-spark-schema/xsd-spark-schema-core/pom.xml
@@ -58,7 +58,7 @@
 		<dependency>
 			<groupId>org.apache.spark</groupId>
 			<artifactId>spark-core_2.12</artifactId>
-			<version>3.0.0</version>
+			<version>3.4.0</version>
 		</dependency>
 
 		<dependency>