diff --git a/build.gradle.kts b/build.gradle.kts
index 2671927b..5e38fd37 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -5,7 +5,7 @@ plugins {
 
 rootProject.extra.apply {
     set("coreCompileSdk", 35)
-    set("coreMinSdk", 24)
+    set("coreMinSdk", 21)
     set("javaVersion", JavaVersion.VERSION_17)
 }