diff --git a/app/build.gradle b/app/build.gradle
index 7fb31fd..bd015af 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -33,7 +33,7 @@ android {
     buildToolsVersion "29.0.0"
     defaultConfig {
         applicationId "com.azuresamples.msalandroidkotlinapp"
-        minSdkVersion 19
+        minSdkVersion 21
         targetSdkVersion 28
         versionCode 1
         versionName "1.0"
diff --git a/app/src/main/res/drawable-v24/ic_launcher_background.xml b/app/src/main/res/drawable/ic_launcher_background.xml
similarity index 100%
rename from app/src/main/res/drawable-v24/ic_launcher_background.xml
rename to app/src/main/res/drawable/ic_launcher_background.xml
diff --git a/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/app/src/main/res/drawable/ic_launcher_foreground.xml
similarity index 100%
rename from app/src/main/res/drawable-v24/ic_launcher_foreground.xml
rename to app/src/main/res/drawable/ic_launcher_foreground.xml
diff --git a/app/src/main/res/drawable-v24/ic_multiple_account_24dp.xml b/app/src/main/res/drawable/ic_multiple_account_24dp.xml
similarity index 100%
rename from app/src/main/res/drawable-v24/ic_multiple_account_24dp.xml
rename to app/src/main/res/drawable/ic_multiple_account_24dp.xml
diff --git a/app/src/main/res/drawable-v24/ic_single_account_24dp.xml b/app/src/main/res/drawable/ic_single_account_24dp.xml
similarity index 100%
rename from app/src/main/res/drawable-v24/ic_single_account_24dp.xml
rename to app/src/main/res/drawable/ic_single_account_24dp.xml
diff --git a/app/src/main/res/drawable-v24/microsoft_logo.png b/app/src/main/res/drawable/microsoft_logo.png
similarity index 100%
rename from app/src/main/res/drawable-v24/microsoft_logo.png
rename to app/src/main/res/drawable/microsoft_logo.png
diff --git a/app/src/main/res/drawable-v24/side_nav_bar.xml b/app/src/main/res/drawable/side_nav_bar.xml
similarity index 100%
rename from app/src/main/res/drawable-v24/side_nav_bar.xml
rename to app/src/main/res/drawable/side_nav_bar.xml