diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7fabc757c..c012b871c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,6 +30,7 @@
 
 ### Update
 - feat: add `useUpgradedAuth` to `SorobanServer.simulateTransaction`, mapping to the `useUpgradedAuth` flag from [Stellar RPC v27.1.0](https://github.com/stellar/stellar-rpc/releases/tag/v27.1.0) to opt simulation into recording `ADDRESS_V2` (CAP-71) auth credentials. Best-effort and transitional; older RPC servers ignore it.
+- chore: update dependencies and build tooling to the latest compatible versions (Gradle `9.6.1`, Kotlin `2.4.0`, Spotless plugin `8.7.0`, Lombok plugin `9.5.0`, NMCP plugin `1.6.0`, Gson `2.14.0`, Commons Codec `1.22.0`).
 
 ## 4.0.0-beta0
 
diff --git a/build.gradle.kts b/build.gradle.kts
index c75b523be..c92c8a2ba 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -4,11 +4,11 @@ plugins {
     id("signing")
     id("maven-publish")
     id("project-report")
-    id("com.diffplug.spotless") version "8.4.0"
+    id("com.diffplug.spotless") version "8.7.0"
     id("com.github.ben-manes.versions") version "0.54.0"
-    id("io.freefair.lombok") version "9.4.0"
-    id("com.gradleup.nmcp").version("1.4.4")
-    kotlin("jvm") version "2.3.20"
+    id("io.freefair.lombok") version "9.5.0"
+    id("com.gradleup.nmcp").version("1.6.0")
+    kotlin("jvm") version "2.4.0"
 }
 
 group = "network.lightsail"
@@ -48,9 +48,9 @@ dependencies {
     implementation("com.squareup.okhttp3:okhttp:${okhttpVersion}")
     implementation("com.squareup.okhttp3:okhttp-sse:${okhttpVersion}")
     implementation("com.moandjiezana.toml:toml4j:0.7.2")
-    implementation("com.google.code.gson:gson:2.13.2")
+    implementation("com.google.code.gson:gson:2.14.0")
     implementation("org.bouncycastle:bcprov-jdk18on:1.84")
-    implementation("commons-codec:commons-codec:1.21.0")
+    implementation("commons-codec:commons-codec:1.22.0")
 
     testImplementation(kotlin("stdlib"))
     testImplementation("org.mockito:mockito-core:5.23.0")
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index c61a118f7..a351597e6 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.4.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.6.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME