diff --git a/dev/deps/spark-deps-hadoop-3-hive-2.3 b/dev/deps/spark-deps-hadoop-3-hive-2.3
index 7f7039c7f0e64..fcb6983898fe7 100644
--- a/dev/deps/spark-deps-hadoop-3-hive-2.3
+++ b/dev/deps/spark-deps-hadoop-3-hive-2.3
@@ -68,16 +68,16 @@ gcs-connector/hadoop3-2.2.31/shaded/gcs-connector-hadoop3-2.2.31-shaded.jar
 gmetric4j/1.0.10//gmetric4j-1.0.10.jar
 gson/2.13.2//gson-2.13.2.jar
 guava/33.4.8-jre//guava-33.4.8-jre.jar
-hadoop-aliyun/3.4.2//hadoop-aliyun-3.4.2.jar
-hadoop-annotations/3.4.2//hadoop-annotations-3.4.2.jar
-hadoop-aws/3.4.2//hadoop-aws-3.4.2.jar
-hadoop-azure-datalake/3.4.2//hadoop-azure-datalake-3.4.2.jar
-hadoop-azure/3.4.2//hadoop-azure-3.4.2.jar
-hadoop-client-api/3.4.2//hadoop-client-api-3.4.2.jar
-hadoop-client-runtime/3.4.2//hadoop-client-runtime-3.4.2.jar
-hadoop-cloud-storage/3.4.2//hadoop-cloud-storage-3.4.2.jar
-hadoop-huaweicloud/3.4.2//hadoop-huaweicloud-3.4.2.jar
-hadoop-shaded-guava/1.4.0//hadoop-shaded-guava-1.4.0.jar
+hadoop-aliyun/3.4.3//hadoop-aliyun-3.4.3.jar
+hadoop-annotations/3.4.3//hadoop-annotations-3.4.3.jar
+hadoop-aws/3.4.3//hadoop-aws-3.4.3.jar
+hadoop-azure-datalake/3.4.3//hadoop-azure-datalake-3.4.3.jar
+hadoop-azure/3.4.3//hadoop-azure-3.4.3.jar
+hadoop-client-api/3.4.3//hadoop-client-api-3.4.3.jar
+hadoop-client-runtime/3.4.3//hadoop-client-runtime-3.4.3.jar
+hadoop-cloud-storage/3.4.3//hadoop-cloud-storage-3.4.3.jar
+hadoop-huaweicloud/3.4.3//hadoop-huaweicloud-3.4.3.jar
+hadoop-shaded-guava/1.5.0//hadoop-shaded-guava-1.5.0.jar
 hive-beeline/2.3.10//hive-beeline-2.3.10.jar
 hive-cli/2.3.10//hive-cli-2.3.10.jar
 hive-common/2.3.10//hive-common-2.3.10.jar
diff --git a/docs/building-spark.md b/docs/building-spark.md
index 57fa3c2bd6a43..1e7c28a273e84 100644
--- a/docs/building-spark.md
+++ b/docs/building-spark.md
@@ -83,7 +83,7 @@ You can enable the `yarn` profile and specify the exact version of Hadoop to com
 
 Example:
 
-    ./build/mvn -Pyarn -Dhadoop.version=3.4.1 -DskipTests clean package
+    ./build/mvn -Pyarn -Dhadoop.version=3.4.3 -DskipTests clean package
 
 ## Building With Hive and JDBC Support
 
diff --git a/pom.xml b/pom.xml
index 436edd65b8796..92221fee48506 100644
--- a/pom.xml
+++ b/pom.xml
@@ -127,7 +127,7 @@
     <slf4j.version>2.0.17</slf4j.version>
     <log4j.version>2.25.3</log4j.version>
     <!-- make sure to update IsolatedClientLoader whenever this version is changed -->
-    <hadoop.version>3.4.2</hadoop.version>
+    <hadoop.version>3.4.3</hadoop.version>
     <!-- SPARK-41247: When updating `protobuf.version`, also need to update `protoVersion` in `SparkBuild.scala` -->
     <protobuf.version>4.33.5</protobuf.version>
     <protoc-jar-maven-plugin.version>3.11.4</protoc-jar-maven-plugin.version>
diff --git a/resource-managers/kubernetes/integration-tests/README.md b/resource-managers/kubernetes/integration-tests/README.md
index d21c619c31b0a..8f50b9ca73546 100644
--- a/resource-managers/kubernetes/integration-tests/README.md
+++ b/resource-managers/kubernetes/integration-tests/README.md
@@ -136,8 +136,8 @@ properties to Maven.  For example:
 
     mvn integration-test -am -pl :spark-kubernetes-integration-tests_2.13 \
                             -Pkubernetes -Pkubernetes-integration-tests \
-                            -Phadoop-3 -Dhadoop.version=3.4.0 \
-                            -Dspark.kubernetes.test.sparkTgz=spark-4.1.0-SNAPSHOT-bin-example.tgz \
+                            -Phadoop-3 -Dhadoop.version=3.4.3 \
+                            -Dspark.kubernetes.test.sparkTgz=spark-4.2.0-SNAPSHOT-bin-example.tgz \
                             -Dspark.kubernetes.test.imageTag=sometag \
                             -Dspark.kubernetes.test.imageRepo=docker.io/somerepo \
                             -Dspark.kubernetes.test.namespace=spark-int-tests \
diff --git a/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/IsolatedClientLoader.scala b/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/IsolatedClientLoader.scala
index c439dfbd91692..8460bdd43fb06 100644
--- a/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/IsolatedClientLoader.scala
+++ b/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/IsolatedClientLoader.scala
@@ -65,7 +65,7 @@ private[hive] object IsolatedClientLoader extends Logging {
           case e: RuntimeException if e.getMessage.contains("hadoop") =>
             // If the error message contains hadoop, it is probably because the hadoop
             // version cannot be resolved.
-            val fallbackVersion = "3.4.2"
+            val fallbackVersion = "3.4.3"
             logWarning(log"Failed to resolve Hadoop artifacts for the version " +
               log"${MDC(HADOOP_VERSION, hadoopVersion)}. We will change the hadoop version from " +
               log"${MDC(HADOOP_VERSION, hadoopVersion)} to " +