diff --git a/build.gradle b/build.gradle
new file mode 100644
index 0000000..99a32f7
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,22 @@
+plugins {
+    id("org.jetbrains.kotlin.jvm") version "1.6.0"
+    id("java-library")
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    testImplementation("org.jetbrains.kotlin:kotlin-test-junit5")
+}
+
+tasks.named('test', Test) {
+    useJUnitPlatform()
+
+    maxHeapSize = '1G'
+
+    testLogging {
+        showStandardStreams = true
+    }
+}
\ No newline at end of file
diff --git a/build.gradle.kts b/build.gradle.kts
deleted file mode 100644
index 3c64e93..0000000
--- a/build.gradle.kts
+++ /dev/null
@@ -1,24 +0,0 @@
-import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
-
-plugins {
-    kotlin("jvm") version "1.6.0"
-}
-
-group = "org.sqidskotlin.sqids"
-version = "1.0-SNAPSHOT"
-
-repositories {
-    mavenCentral()
-}
-
-dependencies {
-    testImplementation(kotlin("test"))
-}
-
-tasks.test {
-    useJUnitPlatform()
-}
-
-tasks.withType<KotlinCompile> {
-    kotlinOptions.jvmTarget = "1.8"
-}
\ No newline at end of file