diff --git a/android-exoplayer/build.gradle b/android-exoplayer/build.gradle
index d7914b47..717d04ad 100644
--- a/android-exoplayer/build.gradle
+++ b/android-exoplayer/build.gradle
@@ -7,6 +7,11 @@ def safeExtGet(prop, fallback) {
 android {
     compileSdkVersion safeExtGet('compileSdkVersion', 27)
     buildToolsVersion safeExtGet('buildToolsVersion', '27.0.3')
+ 
+    compileOptions {
+        targetCompatibility JavaVersion.VERSION_1_8
+        sourceCompatibility JavaVersion.VERSION_1_8
+    }
 
     defaultConfig {
         minSdkVersion safeExtGet('minSdkVersion', 16)
@@ -32,4 +37,4 @@ dependencies {
     }
     implementation 'com.squareup.okhttp3:okhttp:3.12.1'
 
-}
\ No newline at end of file
+}