diff --git a/java-sdk/buildSrc/build.gradle.kts b/java-sdk/buildSrc/build.gradle.kts
index 3fd412d99c184..cf3c978344743 100644
--- a/java-sdk/buildSrc/build.gradle.kts
+++ b/java-sdk/buildSrc/build.gradle.kts
@@ -45,7 +45,7 @@ java {
 kotlin { compilerOptions { jvmTarget = JvmTarget.JVM_11 } }
 
 dependencies {
-    implementation("org.jetbrains.kotlin:kotlin-gradle-plugin:2.4.10")
+    implementation("org.jetbrains.kotlin:kotlin-gradle-plugin:2.4.20")
     implementation("com.diffplug.spotless:spotless-plugin-gradle:7.2.1")
     implementation("org.jlleitschuh.gradle:ktlint-gradle:14.0.1")
 }
diff --git a/java-sdk/sdk/build.gradle.kts b/java-sdk/sdk/build.gradle.kts
index 98a30c653a8df..5d46287006b08 100644
--- a/java-sdk/sdk/build.gradle.kts
+++ b/java-sdk/sdk/build.gradle.kts
@@ -34,7 +34,7 @@ plugins {
     // jsonschema2pojo 1.3.3 targets Java 17:
     // https://github.com/joelittlejohn/jsonschema2pojo/blob/jsonschema2pojo-1.3.3/jsonschema2pojo-gradle-plugin/build.gradle#L45-L48
     id("org.jsonschema2pojo") version "1.2.2"
-    kotlin("plugin.serialization") version "2.4.10"
+    kotlin("plugin.serialization") version "2.4.20"
 }
 
 val schemaBaseUrl = "https://airflow.staged.apache.org/schemas/supervisor-schema"