diff --git a/app/build.gradle b/app/build.gradle
index dcecab5..8a0f1e3 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -5,12 +5,12 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 
 android {
-    compileSdkVersion 28
+    compileSdkVersion 29
     buildToolsVersion '28.0.3'
     defaultConfig {
         applicationId "eu.depau.etchdroid"
-        minSdkVersion 19
-        targetSdkVersion 28
+        minSdkVersion 21
+        targetSdkVersion 29
         versionCode 8
         versionName "1.3.31"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"