diff --git a/android/app/build.gradle b/android/app/build.gradle
index 9cdf098..cb8d5b9 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -41,7 +41,7 @@ android {
 
     defaultConfig {
         applicationId "io.vikunja.app"
-        minSdkVersion 33
+        minSdkVersion 21
         targetSdkVersion 34
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         versionCode flutterVersionCode.toInteger()