diff --git a/tunnel/build.gradle.kts b/tunnel/build.gradle.kts
index 8aa79caa..f71d57c2 100644
--- a/tunnel/build.gradle.kts
+++ b/tunnel/build.gradle.kts
@@ -10,8 +10,8 @@ plugins {
 android {
     compileSdk = 33
     compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_11
-        targetCompatibility = JavaVersion.VERSION_11
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
     }
     namespace = "com.wireguard.android.tunnel"
     defaultConfig {
diff --git a/ui/build.gradle.kts b/ui/build.gradle.kts
index 7164cf3d..67e7a12d 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_11
-        targetCompatibility = JavaVersion.VERSION_11
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
         isCoreLibraryDesugaringEnabled = true
     }
     buildTypes {
@@ -78,5 +78,5 @@ tasks.withType<JavaCompile>().configureEach {
 }
 
 tasks.withType<KotlinCompile>().configureEach {
-    compilerOptions.jvmTarget.set(JvmTarget.JVM_11)
+    compilerOptions.jvmTarget.set(JvmTarget.JVM_17)
 }