diff --git a/android/app/build.gradle b/android/app/build.gradle
index dcfe7db..fc6dbf1 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -37,7 +37,7 @@ android {
 
     defaultConfig {
         applicationId "com.keyboardcrumbs.haclient"
-        minSdkVersion 16
+        minSdkVersion 21
         targetSdkVersion 27
         versionCode 15
         versionName "0.0.10-alpha1"