diff --git a/app/build.gradle b/app/build.gradle
index 378eb37..4275045 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -22,6 +22,10 @@ android {
         disable 'GoogleAppIndexingWarning'
         baseline file("lint-baseline.xml")
     }
+    compileOptions {
+        sourceCompatibility = 1.8
+        targetCompatibility = 1.8
+    }
 }
 
 dependencies {