diff --git a/build.gradle b/build.gradle
index 302a533..11a7e16 100644
--- a/build.gradle
+++ b/build.gradle
@@ -14,7 +14,7 @@ repositories {
 }
 
 dependencies {
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.10"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.20"
     implementation "org.jetbrains.kotlinx:kotlinx-serialization-core-jvm:1.3.2"
     implementation "com.amazon.ion:ion-java:1.9.3"
     testImplementation "io.kotest:kotest-runner-junit5:5.2.2"