diff --git a/flutter_libs/android/build.gradle b/flutter_libs/android/build.gradle
index fc809c81..708a7a47 100644
--- a/flutter_libs/android/build.gradle
+++ b/flutter_libs/android/build.gradle
@@ -45,7 +45,7 @@ android {
     }
 
     defaultConfig {
-        minSdkVersion 16
+        minSdkVersion 19 // ObjectBox Android requires Android 4.4 (API level 19)
     }
 
     dependencies {