diff --git a/build.gradle b/build.gradle
deleted file mode 100644
index 4bf7235b4..000000000
--- a/build.gradle
+++ /dev/null
@@ -1,28 +0,0 @@
-buildscript {
-    ext.kotlin_version = '1.3.21'
-
-    repositories {
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-    }
-}
-
-apply plugin: 'kotlin'
-
-sourceSets {
-    main.java.srcDirs += 'src'
-    test.java.srcDirs += 'test'
-}
-
-repositories {
-    mavenCentral()
-}
-
-dependencies {
-    compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
-    compile 'com.google.guava:guava:16.0'
-    testCompile 'org.junit.jupiter:junit-jupiter:5.4.0'
-}
diff --git a/build.gradle.kts b/build.gradle.kts
new file mode 100644
index 000000000..34a362bac
--- /dev/null
+++ b/build.gradle.kts
@@ -0,0 +1,20 @@
+plugins {
+    kotlin("jvm") version "1.3.21"
+}
+
+repositories {
+    mavenCentral()
+}
+
+sourceSets["main"].java.srcDir("src")
+sourceSets["test"].java.srcDir("test")
+
+dependencies {
+    implementation(kotlin("stdlib"))
+    implementation("com.google.guava:guava:27.0.1-jre")
+    testImplementation("org.junit.jupiter:junit-jupiter:5.4.0")
+}
+
+tasks.withType<Test> {
+    useJUnitPlatform()
+}