diff --git a/tunnel/build.gradle.kts b/tunnel/build.gradle.kts
index 1039923a..8aa79caa 100644
--- a/tunnel/build.gradle.kts
+++ b/tunnel/build.gradle.kts
@@ -10,8 +10,8 @@ plugins {
 android {
     compileSdk = 33
     compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_1_8
-        targetCompatibility = JavaVersion.VERSION_1_8
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
     }
     namespace = "com.wireguard.android.tunnel"
     defaultConfig {
diff --git a/ui/build.gradle.kts b/ui/build.gradle.kts
index 087c5d70..10968ec1 100644
--- a/ui/build.gradle.kts
+++ b/ui/build.gradle.kts
@@ -25,8 +25,8 @@ android {
         buildConfigField("int", "MIN_SDK_VERSION", minSdk.toString())
     }
     compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_1_8
-        targetCompatibility = JavaVersion.VERSION_1_8
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
         isCoreLibraryDesugaringEnabled = true
     }
     buildTypes {
@@ -78,5 +78,5 @@ tasks.withType<JavaCompile>().configureEach {
 }
 
 tasks.withType<KotlinCompile>().configureEach {
-    kotlinOptions.jvmTarget = JavaVersion.VERSION_1_8.toString()
+    kotlinOptions.jvmTarget = JavaVersion.VERSION_11.toString()
 }