diff --git a/android/app/build.gradle b/android/app/build.gradle
index c9781bf10..bde059e4e 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -38,7 +38,7 @@ apply plugin: 'kotlin-android'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 30
+    compileSdkVersion 31
 
     sourceSets {
         main.java.srcDirs += 'src/main/kotlin'
@@ -47,7 +47,7 @@ android {
     defaultConfig {
         applicationId "com.rtirl.chat"
         minSdkVersion 21
-        targetSdkVersion 30
+        targetSdkVersion 31
         versionCode vcode
         versionName flutterVersionName
         multiDexEnabled true