diff --git a/pom.xml b/pom.xml
index 694ea31e6f377..ddabc82d2ad13 100644
--- a/pom.xml
+++ b/pom.xml
@@ -124,7 +124,7 @@
     <!-- make sure to update IsolatedClientLoader whenever this version is changed -->
     <hadoop.version>3.4.0</hadoop.version>
     <!-- SPARK-41247: When updating `protobuf.version`, also need to update `protoVersion` in `SparkBuild.scala` -->
-    <protobuf.version>3.25.4</protobuf.version>
+    <protobuf.version>3.25.5</protobuf.version>
     <protoc-jar-maven-plugin.version>3.11.4</protoc-jar-maven-plugin.version>
     <yarn.version>${hadoop.version}</yarn.version>
     <zookeeper.version>3.9.2</zookeeper.version>
diff --git a/project/SparkBuild.scala b/project/SparkBuild.scala
index d93a52985b772..2f390cb70baa8 100644
--- a/project/SparkBuild.scala
+++ b/project/SparkBuild.scala
@@ -89,7 +89,7 @@ object BuildCommons {
 
   // Google Protobuf version used for generating the protobuf.
   // SPARK-41247: needs to be consistent with `protobuf.version` in `pom.xml`.
-  val protoVersion = "3.25.4"
+  val protoVersion = "3.25.5"
   // GRPC version used for Spark Connect.
   val grpcVersion = "1.62.2"
 }