diff --git a/build.gradle.kts b/build.gradle.kts
index b5efc16..765125c 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -9,7 +9,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath(kotlin("gradle-plugin", "1.5.30"))
+        classpath(kotlin("gradle-plugin", "1.8.22"))
         classpath("com.vanniktech:gradle-maven-publish-plugin:0.17.0")
     }
 }
@@ -22,6 +22,7 @@ allprojects {
     tasks.withType(JavaCompile::class.java) {
         sourceCompatibility = "1.8"
         targetCompatibility = "1.8"
+        options.release.set(8)
     }
     tasks.withType(KotlinCompile::class.java) {
         kotlinOptions {
diff --git a/dadb/build.gradle.kts b/dadb/build.gradle.kts
index 29e025a..b126255 100644
--- a/dadb/build.gradle.kts
+++ b/dadb/build.gradle.kts
@@ -18,12 +18,12 @@ repositories {
 }
 
 dependencies {
-    api("com.squareup.okio:okio:2.10.0")
+    api("com.squareup.okio:okio:3.4.0")
     implementation(platform("org.jetbrains.kotlin:kotlin-bom"))
     implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
 
     testImplementation("org.jetbrains.kotlin:kotlin-test")
-    testImplementation("com.google.truth:truth:1.0.1")
+    testImplementation("com.google.truth:truth:1.4.4")
 }
 
 val toolchainFactory = objects.newInstance(JavaToolchainFactory::class.java)
@@ -31,6 +31,7 @@ val metadataDetector = objects.newInstance(DefaultJvmMetadataDetector::class.jav
 
 graal {
     graalVersion("21.0.0.2")
+    javaVersion("8")
 }
 
 tasks.test {