diff --git a/doric-android/app/build.gradle b/doric-android/app/build.gradle
index 178be178..a4d00fda 100644
--- a/doric-android/app/build.gradle
+++ b/doric-android/app/build.gradle
@@ -5,7 +5,7 @@ android {
     buildToolsVersion '30.0.1'
     defaultConfig {
         applicationId "pub.doric.demo"
-        minSdkVersion 21
+        minSdkVersion 19
         targetSdkVersion 30
         versionCode 1
         versionName "1.0"
diff --git a/doric-android/devkit/build.gradle b/doric-android/devkit/build.gradle
index 9a38163a..60631ee6 100644
--- a/doric-android/devkit/build.gradle
+++ b/doric-android/devkit/build.gradle
@@ -6,7 +6,7 @@ android {
 
 
     defaultConfig {
-        minSdkVersion 21
+        minSdkVersion 19
         targetSdkVersion 30
         versionCode 1
         versionName "1.0"
diff --git a/doric-android/doric/build.gradle b/doric-android/doric/build.gradle
index 6dd78f4b..e6d9c86a 100644
--- a/doric-android/doric/build.gradle
+++ b/doric-android/doric/build.gradle
@@ -5,7 +5,7 @@ android {
     buildToolsVersion '30.0.1'
 
     defaultConfig {
-        minSdkVersion 21
+        minSdkVersion 19
         targetSdkVersion 30
         versionCode 1
         versionName "1.0"