diff --git a/app/build.gradle b/app/build.gradle
index 716b45ea9..14e75e84d 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,7 +1,7 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 21
+    compileSdkVersion 26
     dexOptions {
         javaMaxHeapSize "4g"
     }