diff --git a/app/build.gradle b/app/build.gradle
index 17f34d6..4e188c7 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -6,7 +6,7 @@ android {
     compileSdkVersion 28
     defaultConfig {
         applicationId "com.nain.securerealmkey"
-        minSdkVersion 21
+        minSdkVersion 14
         targetSdkVersion 28
         versionCode 1
         versionName "1.0"
diff --git a/library/build.gradle b/library/build.gradle
index 45b8e43..df4d655 100644
--- a/library/build.gradle
+++ b/library/build.gradle
@@ -6,7 +6,7 @@ android {
 
 
     defaultConfig {
-        minSdkVersion 21
+        minSdkVersion 14
         targetSdkVersion 28
         versionCode 1
         versionName "1.0"