diff --git a/lib/build.gradle.kts b/lib/build.gradle.kts
index 4be75cc..f85ca03 100644
--- a/lib/build.gradle.kts
+++ b/lib/build.gradle.kts
@@ -49,8 +49,6 @@ dependencies {
 
 version = "0.2.0-SNAPSHOT"
 
-java.toolchain.languageVersion.set(JavaLanguageVersion.of(8))
-
 publishing.publications.getByName<MavenPublication>("maven") {
     artifactId = rootProject.name + "-postgresql"