diff --git a/DroidFishApp/build.gradle b/DroidFishApp/build.gradle
index 506fffe..9071415 100644
--- a/DroidFishApp/build.gradle
+++ b/DroidFishApp/build.gradle
@@ -46,6 +46,10 @@ android {
     lintOptions {
         abortOnError false
     }
+    compileOptions {
+        sourceCompatibility = '1.8'
+        targetCompatibility = '1.8'
+    }
 }
 
 dependencies {