diff --git a/adsSdk/build.gradle b/adsSdk/build.gradle
index 0a36511..23665f7 100644
--- a/adsSdk/build.gradle
+++ b/adsSdk/build.gradle
@@ -21,8 +21,8 @@ android {
         }
     }
     compileOptions {
-        sourceCompatibility JavaVersion.VERSION_11
-        targetCompatibility JavaVersion.VERSION_11
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
     }
 }