diff --git a/config-kotlin-build-time-eval/build.gradle.kts b/config-kotlin-build-time-eval/build.gradle.kts
index d9cab75..71493c5 100644
--- a/config-kotlin-build-time-eval/build.gradle.kts
+++ b/config-kotlin-build-time-eval/build.gradle.kts
@@ -31,7 +31,7 @@ tasks.withType<JavaCompile>().configureEach {
 repositories { mavenCentral() }
 
 dependencies {
-  implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8:2.1.10")
+  implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8:2.3.21")
   implementation("org.pkl-lang:pkl-config-kotlin:0.31.0")
   implementation("org.pkl-lang:pkl-config-java-all:0.31.0")
 }