diff --git a/build.gradle b/build.gradle
index 87ee4e7..c429950 100644
--- a/build.gradle
+++ b/build.gradle
@@ -17,7 +17,7 @@
 buildscript {
     ext.versions = [
             'compileSdk' : 35,
-            'minSdk'     : 19,
+            'minSdk'     : 21,
             'targetSdk'  : 35,
             'buildTools' : '35.0.0',
             'gmsAds'     : '22.6.0',