diff --git a/pom.xml b/pom.xml
index 54eb92873853c..da7c8eccfceac 100644
--- a/pom.xml
+++ b/pom.xml
@@ -123,7 +123,7 @@
     <protobuf.hadoopDependency.version>2.5.0</protobuf.hadoopDependency.version>
     <!-- Actual Protobuf version in Spark modules like Spark Connect, protobuf connector, etc. -->
     <!-- SPARK-41247: When updating `protobuf.version`, also need to update `protoVersion` in `SparkBuild.scala` -->
-    <protobuf.version>3.21.9</protobuf.version>
+    <protobuf.version>3.21.11</protobuf.version>
     <protoc-jar-maven-plugin.version>3.11.4</protoc-jar-maven-plugin.version>
     <yarn.version>${hadoop.version}</yarn.version>
     <zookeeper.version>3.6.3</zookeeper.version>
diff --git a/project/SparkBuild.scala b/project/SparkBuild.scala
index 2dbcea60de9e2..556f8528ea1b0 100644
--- a/project/SparkBuild.scala
+++ b/project/SparkBuild.scala
@@ -87,7 +87,7 @@ object BuildCommons {
 
   // Google Protobuf version used for generating the protobuf.
   // SPARK-41247: needs to be consistent with `protobuf.version` in `pom.xml`.
-  val protoVersion = "3.21.9"
+  val protoVersion = "3.21.11"
   // GRPC version used for Spark Connect.
   val gprcVersion = "1.47.0"
 }