diff --git a/build.gradle.kts b/build.gradle.kts
index 691a77f..2f717ee 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -105,10 +105,6 @@ allprojects {
     dependencies {
         implementation(kotlin("stdlib-jdk8", kotlinVer))
     }
-    java {
-        targetCompatibility = JavaVersion.VERSION_14
-        sourceCompatibility = JavaVersion.VERSION_14
-    }
     tasks {
         withType(ShadowJar::class) {
             relocate("kotlinx-datetime", "${rootProject.group}.kotlinx-datetime")