diff --git a/opus_flutter_android/android/build.gradle b/opus_flutter_android/android/build.gradle
index 3dac54e..a8dca6b 100644
--- a/opus_flutter_android/android/build.gradle
+++ b/opus_flutter_android/android/build.gradle
@@ -34,7 +34,7 @@ android {
     }
 
     defaultConfig {
-        minSdkVersion 19
+        minSdkVersion 21
     }
     externalNativeBuild {
         ndkBuild{
@@ -57,3 +57,4 @@ android {
         }
     }
 }
+