diff --git a/oem/firstvoices/android/app/build.gradle b/oem/firstvoices/android/app/build.gradle
index 737d3462c3..6259b7bb8c 100644
--- a/oem/firstvoices/android/app/build.gradle
+++ b/oem/firstvoices/android/app/build.gradle
@@ -10,11 +10,6 @@ apply from: "$rootPath/version.gradle"
 android {
     compileSdkVersion 33
 
-    compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_1_8
-        targetCompatibility = JavaVersion.VERSION_1_8
-    }
-
     defaultConfig {
         applicationId "com.firstvoices.keyboards"
         minSdkVersion 21
@@ -70,6 +65,12 @@ android {
     }
 }
 
+java {
+    toolchain {
+        languageVersion.set(JavaLanguageVersion.of(11))
+    }
+}
+
 // how to configure the sentry android gradle plugin
 sentry {
     // Disables or enables the automatic configuration of Native symbols