diff --git a/.github/workflows/test-gradle-project-using-bindings-server/build.gradle.kts b/.github/workflows/test-gradle-project-using-bindings-server/build.gradle.kts
index 8f2302b2e..24d81ecb2 100644
--- a/.github/workflows/test-gradle-project-using-bindings-server/build.gradle.kts
+++ b/.github/workflows/test-gradle-project-using-bindings-server/build.gradle.kts
@@ -1,7 +1,7 @@
 import java.net.URI
 
 plugins {
-    kotlin("jvm") version "2.3.20"
+    kotlin("jvm") version "2.3.21"
 }
 
 repositories {
diff --git a/buildSrc/build.gradle.kts b/buildSrc/build.gradle.kts
index ecf8415c3..67968841c 100644
--- a/buildSrc/build.gradle.kts
+++ b/buildSrc/build.gradle.kts
@@ -2,14 +2,14 @@ import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
     `kotlin-dsl`
-    kotlin("jvm") version "2.3.20"
+    kotlin("jvm") version "2.3.21"
 }
 
 dependencies {
-    implementation(platform("org.jetbrains.kotlin:kotlin-bom:2.3.20"))
+    implementation(platform("org.jetbrains.kotlin:kotlin-bom:2.3.21"))
 
-    implementation("org.jetbrains.kotlin:kotlin-gradle-plugin:2.3.20")
-    implementation("org.jetbrains.kotlin:kotlin-serialization:2.3.20")
+    implementation("org.jetbrains.kotlin:kotlin-gradle-plugin:2.3.21")
+    implementation("org.jetbrains.kotlin:kotlin-serialization:2.3.21")
     implementation("io.kotest:kotest-framework-plugin-gradle:6.1.11")
 
     implementation("io.gitlab.arturbosch.detekt:detekt-gradle-plugin:1.23.8")