diff --git a/app/build.gradle b/app/build.gradle
index cd28809..3ae149e 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -4,7 +4,7 @@ android {
     compileSdkVersion 27
     defaultConfig {
         applicationId "xdsopl.robot36"
-        minSdkVersion 15
+        minSdkVersion 16
         targetSdkVersion 27
         versionCode 39
         versionName "1.38"