diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 5b4792289..23ab824c6 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -1,3 +1,5 @@
+import com.google.devtools.ksp.gradle.KspTaskJvm
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17
 import java.io.ByteArrayOutputStream
 import java.time.Instant
 import java.time.ZoneOffset
@@ -150,7 +152,7 @@ android {
     }
 
     composeOptions {
-        kotlinCompilerExtensionVersion = "1.4.7"
+        kotlinCompilerExtensionVersion = "1.4.7-dev-k1.9.0-Beta-bb7dc8b44eb"
     }
 
     namespace = "com.hippo.ehviewer"
@@ -241,3 +243,7 @@ ksp {
     arg("room.schemaLocation", "$projectDir/schemas")
     arg("room.generateKotlin", "true")
 }
+
+tasks.withType<KspTaskJvm>().configureEach {
+    compilerOptions.jvmTarget.set(JVM_17)
+}
diff --git a/build.gradle.kts b/build.gradle.kts
index 76a9fedfe..cfa5a244e 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,8 +1,8 @@
 plugins {
     id("com.android.application") version "8.1.0-beta03" apply false
-    kotlin("android") version "1.8.21" apply false
-    kotlin("plugin.serialization") version "1.8.21" apply false
-    id("com.google.devtools.ksp") version "1.8.21-1.0.11" apply false
+    kotlin("android") version "1.9.0-Beta" apply false
+    kotlin("plugin.serialization") version "1.9.0-Beta" apply false
+    id("com.google.devtools.ksp") version "1.9.0-Beta-1.0.11" apply false
 }
 
 allprojects {